Guys, this looks really interesting. It is amazing to see the energy and creativity in this hobby. If you don't already know about this, here is a great forum for these types of activities. 9xforums.com. It's all about open source firmware for the 9x - 24x7x365. They have good info on RadioClone, er9x, Gruvin, Open9x and any other transmitter related project.
I'll enjoy watching your progress.