Everyone out there is posting stuff about iPhone applications, so I thought I should do the same because if you know me, you know I like to be completely and utterly trendy. It’s almost a genetic thing. That and my need to wear comfortable shoes. Now I can already hear you saying “but Jody, the need to be completely trendy and the need to wear comfortable shoes cancel each other out!” You know, for some people, that would be true. But I can be completely trendy AND wear comfortable shoes and they do NOT cancel each other out. That’s how awesome I am.

So here is my pick for the absolute best free iPhone app. The runners-up, More Cowbell and SimStapler, were very worthy opponents. I’m guessing tens of thousands of people out there did not know they needed an iPhone application that allowed them to make a cowbell sound, followed by Christopher Walken saying “I need more cowbell”.

As for SimStapler, well, where else can you go if you have an urgent need to pretend to staple something? Nowhere I tell you! SimStapler does it all! It pretends to staple, and keeps count of how many pretend staples you’ve done! Perfect!

But to get all serious, the true winner here, in the “I can’t believe it’s free” category, is AOL Radio. All kidding aside, this app (which I’ve run on Mr. Dump’s 1st generation iPhone so it doesn’t need the 3G) gives you access to dozens of radio stations, to listen to live over your iPhone. There are some custom AOL set up stations (comedy, trance, and my favorites, One Hit Wonders and All 80s.) If you hear something you like, you can mark it as a favorite and/or go pull it up in AOL Music (where you can learn more about the song/artist) or iTunes to buy it. You can set favorite stations to find them quickly. And big bonus, it carries some terrestrial local stations, so you can listen to WBCN anywhere.

There are some limitations if you aren’t on wifi or 3g, according to the iTunes site, but don’t let that stop you. If you have an iPhone and haven’t grabbed AOL Radio, go do it now.