Great App: TuneIn

If you have $0.99 and an iPhone/iPod, check out TuneIn, a great app for listening to radio stations on your device.

I bought it because the free apps I had to listen to WHK1420 and KRLA870 just quit working after I upgraded to iOS 5.1. But this app is even better than I*Heart*Radio, imho. It does background playing, plus it immediately starts playing the station when you select it--there's no delay. Plus you can record audio, which is something you can't do with iHeart, as far as I know. Great app.