I've been playing Words with Friends and am just starting a game with someone who I just realized is a gal I don't want to play games with. We have kind of a history. She's sly, though, not having a real name associated with her Words with Friends account, so it was only a mutual friend who told me. Now I want to resign the game. How do I do that on my iPhone?

My daughter got overenthusiastic and preordered a bunch of upcoming music CDs from the Apple iTunes Store. Not so good. Once they all ship, I'm looking at over $100 in music purchases, way more than I can afford. Is there some way to cancel these pre-orders before they're charged to my iTunes account?

I admit it, I don't sync my iPad with my computer very often. Nor do I sync my iPhone, for that matter. Just seems a hassle. On the other hand, when I do, there are tons of updated apps. Isn't there some way to update my applications directly on my iPhone or iPad, Dave?

I love Starbucks and go there all the time. It's no surprise that I like the slick Starbucks app for my iPhone too, it shows me the closest 'bux and also manages my gold card, letting me swipe the phone to pay for purchases and track drinks so I get those lovely free drink after 15 cards. Problem is, my son snagged my phone last time we were at Starbucks and promptly bought himself a new thermos and a bunch of VIA, which I didn't find out about until I saw my balance drop precipitously. Is there some way to prevent this from happen, to add a password to the Starbucks app itself?

My iPhone and MacBook are constantly connected, and with the advent of wireless sync in iOS 5, even when they're not connected, my phone still stays in sync with my computer data, which would be a life saver if I ever -- horrors! -- lost my iPhone.

But most people who have iPhones don't sync very often at all, and a surprising number of iPhone owners have never sync'd their phone to their computer.

That's the old school vision of your cellphone as a standalone device that works or dies, and there's no way for you to interact with it on your computer or in "the cloud", so I completely understand people who go from a Motorola or a Nokia device to an iPhone and use it the same way.

The problem is, what if their phone gets broken or they lose it? What happens to the photos they took on the device? What happens to their contact list and address book?

Enter the simple, ingenious iomega SuperHero Backup & Charger for iPhone.

Everyone keeps telling me how they find all these great bargains and deals by using the location features in their iPhones, but I have an iPhone too and I have no idea how to find any of this stuff. It's a phone. What am I missing?

Hi Dave. I've seen your earlier article on how to tweak my text message notification beep [see iPhone beep repeatedly on new text messages?] but now that I'm running iOS 5, it no longer works. On iPhone iOS5, how can I change this notification setting?

I spend a lot of time surfing the Web on my iPhone 4 and sometimes want to share what I find with my administrative assistant. On my laptop, I can just copy and paste the URL, but in Safari on my Apple iPhone, I can't seem to do the same without a lot of hassle. Is there an easier way to share a Web page address on the little gizmo?

My parents live in Mumbai, India and sometimes when I call them I realize that I've mis-computed the timezone change and woken them up. They are forgiving - they're good parents! - but I'd like to be a bit smarter about it all. How can I add Mumbai as a world clock on my iPhone?

I read your article yesterday about how to set up Picasa [soon to be renamed "Google Photos"] so you can email a photo to your Picasa account, but you sort of skipped the step of how to actually send that message from the phone. When I go to send a message, there's never an "add attachment" or "add photo" button on my iPhone. Am I missing something?

I want to add some photos to my Picasa album from my iPhone. I believe you can do that by emailing yourself the photos - which is pretty easy to do on the iPhone - but I don't know what address to use on Picasa [soon to be renamed "Google Photos", btw]. Help!

I've seen some people on Google Plus checking in at specific Google Places venues but I don't see how they're doing that. Google Local is shut down and I can't figure out how, using the iPhone mobile interface, they're doing it. Help!

Every time I plug in my iPhone to my Toshiba PC laptop running Microsoft Windows 7, it promptly tries to import all the pictures and place copies of them into "My Pictures". It's driving me crazy. How the heck do I stop Windows trying to import my iPhone photos?

I have my iPhone set up as a personal hotspot through AT&T but suspect that using it via wifi slows me down and that if I could plug it directly into my computer, it'd work faster. Is that true, and if so, how can I tether my iPhone via USB to my MacBook and gain faster access to the Internet?

I occasionally go to very hip, trendy nightclubs here in Los Angeles and really want to "check in" to them on Facebook so that my friends can see that I'm at the cool party, the favorite club, etc. Can you give me a quick tutorial on how to use Facebook Places to check in so I can do so even in the jostling of the bar or the dance floor?

For all the years I've been going into Starbucks and checking out their free song download of the week, I've always assumed that I needed to enter the redemption code in iTunes on my computer, but the last time I was looking at the card, I realized that you can redeem it and download the new song directly on your Apple iPhone, no iTunes required. Nice!

How cool would it be to send print jobs to your home or office printer regardless of whether you were in town or halfway around the world? Well, you can't quite do that from any computer yet, but if you've got an Apple iOS device (iPhone or iPad) or if you're one of the very few lucky people who have a Google Chrome-based laptop, you can be the first to experiment with a nifty new service called Google Cloud Print.

I have a ton of overlap between the people in my Address Book / Contacts on my iPhone and the people with whom I'm friends on Facebook. Since my iPhone can display people's photos when they ring, I'd really love to have as many of my friend's pictures in my iPhone contacts data as possible. Which leads to an obvious question: is there some sort of tool that lets you import Facebook profile pictures and match them with your Address Book contacts? That'd be very cool...

I have a Microsoft Wireless IntelliMouse Explorer Optical Mouse 2.0, Model # 1007,1009. I get some kind of radio interference that causes the mouse cursor to move very slowly and reacts very slowly to mouse clicks. At exactly the same time I get static in the computer speakers and visible static on the T.V., which is always on channel 3 for Tivo viewing. The T.V. static is in dotted lines across the screen, in groups of 8 or 10 and rising on the screen. The mouse instruction manual says that the optical mouse is operating on 27.145MHz. Is there a way to trace the interference or filter it out on both the mouse and the T.V.? This all started happening about 2 weeks ago.

I'm moving into a new apartment on Friday (first time living by myself!) and I don't own a TV. However, I love movies so I'm going to buy one this weekend. You easily know more about this kind of thing than any other friend of mine, so I was wondering if you had any pointers? Things to look for - LED vs plasma, etc?

Basically, I just want to watch movies on it. I'm not a big videophile (or audiophile for that matter). I'll probably get a 40" with a Blu-Ray player and call it a day. But I don't want to make the wrong choice, so I figured I'd ask Dave. Thanks for any advice. Most people are steering me toward a Vizio at CostCo because they're pretty cheap. I just want to watch something like Wall-E and have it look incredible.

This is driving me crazy: I have a ton of music on my iPhone and listen to it instead of my iPod. Easier, less gadgets involved. Problem is, if I shake or jostle my iPhone then the iPod app decides I want to jump to the next song. I don't! Can I turn off shake to shuffle and if so, how??

As someone who has both an iPhone and an iMac, I've become quite a fan of Apple's Address Book utility. I know it can keep track of birthdays too, but I don't know if something's broken or what, but I never get a "birthday" field to fill in. How do I enter a birthday into someone's Address Book entry?

I've never seen this before, but on the icon for Messages on my iPhone 4, there's a small white exclamation mark in a red circle. Not a number indicating how many new text messages I have, but an exclamation mark. Apparently that shows up when something failed. Now what??

My sister sends photographs in the text messages she sends me from her iPhone, but on my iPhone I can't see how to do the same thing. Is there some trick to this, or something I need to enable on the iPhone to text message photos? Or is it something I need to sign up for with AT&T?

Are you one of the lucky ones who got a new mobile phone or smart phone for Christmas? So let me ask you this: Have you ever left your mobile phone behind? Say, in a restaurant, a coffee shop, or at work? Don't you just hate that feeling when you finally realize it? I know I do, and it has happened to me more than once, before, but never again.

Zomm is the first ever Wireless Leash™ for your smartphone! Alright, I know what you are thinking. Another device I have to carry? Steeeeve, I'm trying to carry less devices, not more! Well wipe that look of skepticism off your face, you cynical sort. The short answer is yes, it is an additional small device to carry, but a worthwhile one, about which I feel strongly to be a very useful tool.