Does it need more work just for iPhone or for all phones that are not branded StraightTalk but can operate in CLR and PCS bands? A 3G AT&T phone other than iPhone, for example.
I hope LTE eliminates or reduces incompatibility that prevails in the U.S. ,not only because of different technologies such as CDMA and GSM, but also different bands within the same technology (1900 and 850 MHz in the U.S.m versus 900 and 1800 MHz, in most other countries, except Japan and Korea) or different bands such as IMT, CLR, PCS and AWS.