Look out Nextel!
Here's a cool company with a cool idea. As a long-time Nextel fan and supporter, I was a bit surprised to see that someone had such an easy idea to compete with Nextel. Basically this service uses the existing voice capturing and playback capabilities built into cell phones to allow you to broadcast to 1 person or to many people. Surprisingly enough, you do NOT have to be on a special network to do this. Rather, you just download this software application. And I thought it was big when I could use my Nextel nationwide!