Of course he's just the first to claim it... but I have not seen anyother tuner comment that they have been able to actually make changes:
Ron cracks LS2 PCM! Yes... we know it can be done!
http://forums.corvetteforum.com/show....php?t=1000713
So where is HP Tuners?
Got a PCM? Can you read it? Have you been able to write to it?
Brian