ATi made a big noise about their 'Gamers Manifesto' earlier in the year so it would be very stupid for them to suddenly do a 180 and start pushing for vendor specific features.
It's hard to know what to take as truth and what is just marketing guff from ANY of the big players, but if they are good to their word then they won't do such things having so vocally attacked Nvidia for it.
There will be a lot of white noise coming over the next few months until the 6800 series launches to put people off of buying Nvidia cards (not saying this is unusual, it always happens whenever someone has a product incoming), so i think it's best to take everything with a pinch of salt until they actually arrive.

It's hard to know what to take as truth and what is just marketing guff from ANY of the big players, but if they are good to their word then they won't do such things having so vocally attacked Nvidia for it.
There will be a lot of white noise coming over the next few months until the 6800 series launches to put people off of buying Nvidia cards (not saying this is unusual, it always happens whenever someone has a product incoming), so i think it's best to take everything with a pinch of salt until they actually arrive.