Blizzard rumored to be bringing Diablo III to Xbox 360 and PS3 based on rumors of them starting to hire more console-specific programmers and staff. PC and Mac versions still expected to be released first.
Currently the game is being developed for the PC and Mac but Blizzard has ported their RPG games to consoles before in the past although nothing since the PS1/N64 days.
It is expected that Blizzard will either use the PC version and downgrade the game on consoles to make it work or less likely "water-down" the PC version to make all versions as identical as possible.
http://kotaku.com/5690583/blizzard-s...le-development