Tilimi for iPad 2.2.1
the author of this app says:
You can now use the iPad / iPhone / iPod as a CB transceiver, being able to talk in real time with people just pressing a button. Find someone to talk with and enter the world of "Real Time Social Network" is very easy; just download the application at the introductory price of $0.99 and start listening to all available channels. Guests can also speak in channels from 20.00 thru 20.31. Tilimi for iPad enhances the Tilimi experience with a wider user interface; the two page layout lets you talk while checking messages, managing contacts, adjust settings, and see the channel information.
Requires iPhone OS 3.2 or later.