The iPhone Dev-Team is working on a baseband downgrade method which will even work for those who updated to the 06.15 modem firmware.
MuscleNerd tweeted the following earlier today...
@Lezanz sorry still collecting data on that. But also working on a bb downgrade (!) method for those with unlockable bb
@idansc yes if the BB downgrade method works, it will work for 06.15 too.
This would be excellent news especially for those who upgraded to 06.15 for unlock and lost their GPS capabilities.
