Bet you $100 this doesn't make it, even if it's cheap and reliable. Having user-controlled hardware in cell phones will give Phone Companies the willies. Also makes FBI/NSA surveillance much harder.
This hardware will make it to market, but mysteriously, the FCC will drag its feet on any certification, VZW and at&t will take a long time looking into supporting it, and ultimately, it will Be Out of Their Hands, They Just Can't Support It.
