This is a guest review...

When a developer sets out to design an app, it's my firm belief that they should concentrate on fleshing out the features that exist *first*. Only when those features are complete should new ones be considered. PolyTune is a great example of this. Unfortunately, it's a great example of what *not* to do.

That's not to say that PolyTune is all bad. In fact, it does exactly what it advertises, and quite smoothly. A single strum of your guitar, and the app shows six different indicators. One for each string, each displaying real time like a standard monotuner would. That alone is quite impressive. But I don't think that minor convenience alone is enough reason to buy this app. Especially with all the monotuner apps out there with a plethora of bells and whistles. And especially not with its $5 price tag.

That about sums up what's good about the app. And it pales in comparison to what's glaringly absent. PolyTuner does have some minor configuration options. Just, not many.

I've been hearing a lot about Ping, the music-based social network that's been added to Apple's iTunes 10 system, but don't really get it. Can you show me how to get started and share some thoughts on whether it's worth the effort to join or not, Dave?

My name is Daniel Sadownick and I am a jazz artist whose CD "There Will Be A Day" is now up on iTunes as well as other online retailers. I just joined an Indie marketing website where they can promote my record. They provide links that point directly to all of the sites where my CD is up at (i.e., Amazon, CD Baby, etc.). Now, these sites have concrete URL's and yet my promotion site also asks for my iTunes URL. I have had no luck in finding that out and I'm hoping that you can help me.

I live for music and have a ton of different musicians and bands that I want to keep track of. I know I can go to somewhere like Google News + Technorati and create dozens of searches, but, man, it's the 21st century, surely there's an easier way?