[arfrank]

Where does it pull concert data from?

Also it would be cool to use last.fm data via a username instead of only iTunes data.

[wait]

I get it from Bandsintown. They have a pretty nice API.

Getting a list of bands from last.fm is a good idea. I'll add it to the "things to do" list.

[arfrank]

It'd also be nice if you could also pull iTunes data straight from a iOs or android device. I don't believe the APIs exist to do that via a web app, but it'd be nice.

[wait]

Yea, I was actually thinking about that. I have no idea how to pull that off, so it probably won't happen anytime soon.