[abrigham]

For anyone that's curious... the reason it cannot run both GSM and CDMA simultaneously is because there is technically only one radio. It's capable of multiple frequencies, just not at the same time. Think of it just like your car stereo - it can't tune to different two stations at once, so the radio in the phone is similar. It does have the auto mode, but that only switches to GSM if no CDMA signal is present.

I think the reason no one has come out w/ an app that can switch from one to the other every few minutes is, at least last I checked, no one can seem to figure out how to switch the radio mode outside of the phone's own settings screen (it's not just a registry edit or something simple like that from what I understand)