http://www.ppcgeeks.com/possible-agp...700-t4462.html
the p3600 is the phone in question. It has the same GPSone as the 6700 and 6800 and originally came without GPS support - THIS IS possible. I realise it will be unlikely to happen without an HTC buyin, being as the opened it on the above device, I think they are the key here. Not the individual carriers.