The i880 is only an iDen phone, there are 2 new hybrid phones, the series "ic" begining with ic402. This phone use CDMA for the voice calls and Sprint power vision and iDEN only for walike talkie, direct talk and group call. You can find a map with the CDMA, iDEN and hybrid coverage in this page:
http://coverage.sprintpcs.com/IMPACT...FDisplayPhones
Anyway, I like the new hybrid phone because the signal strenght, but its too big and is not pretty by now. I prefer the i880 for the camera, bluetooh and size.
Mario Alberto
Nextel CSR - Tier 1.