I did play on a 364, under snow leopard... and some strange things happen. like the Catalyst software did not quit ( had to force quit ), etc...
We know is just a Lion Fix, so i believe is just for those who need to be on a LION.

Richard can confirm that... but we are

Still on Snow Leopard
Still m329
Keeping away from ATI Graphic Cards ( only Nvidias 8800 and GTX 285s )
Also the Quadro is great, but is not really a NEED so far ( correct ? )
All good so far

Regards