NVIDIA is showing Apple some love and is planning to release a Mac Edition for the GTX 285.
Little information is available on the card, however there doesn't seem to be anything special about the card at this point. Performancs is said to be the same and Apple isn't even getting their favored DisplayPort on the back of the card.
While clock speeds arent mentioned, the card will still have 240 stream processors and 1GB of GDDR3. EVGA will be making the card and the reference cooler will be used. Pricing wasn't available, but the card should be available in June.