I've been reading along on your series about the Find My iPhone [iTunes link] application and its slick remote security features [ed: start with How to use Find My iPhone on an iPad, then read How to Remote Lock your Apple iPhone] but for reasons I don't reall understand, when I signed in to my Mobile Me account to use the service, it listed a bunch of devices I no longer have. I want to clean the list up, but I just don't see how to do it on my iPhone??

I'm pretty sure that I lost my Apple iPhone 4, which is bumming me out, and while I already locked it remotely [see How do I remote lock my Apple iPhone?] I want to send a message to the person who might be trying to hack into it that I'll pay them a $20 reward, no questions asked, if they'll return it to me. Can I send an emergency text message to my iPhone?

I think my Apple iPhone was stolen, but I suppose it's possible I just forgot it somewhere. Problem is, I have lots of personal information on the phone and have skipped the hassle of having an access code in the interest of answering phone calls more quickly. Now I want to use the remote-lock capability to send the lock request to the phone, just in case someone does find it and starts playing. How can I easily do that?

According to Apple, I can now use the "Find my iPhone" feature to make sure that I never lose my new iPad. Nice, but for the life of me, I can't figure out how to turn it on, even with the latest iOS iPad firmware updates. What's the secret, Dave?

I'm a big fan of Apple gear, like you are, and while I've been an iPhone owner for quite a while, I've always been pretty leery about paying for the Mobile Me service. Apparently, though, one of the slick new features is the ability to always find your phone if it's otherwise lost, called "Find My iPhone" or "Find My Phone" or something like that? Coolness. Can you show how it works?