Although Blizzard has admitted in September 2011 that is was toying with the idea of a console version of Diablo 3, it never confirmed or denied that such a version will be released.
The first concrete confirmation of Diablo 3's console version came today from the game's community manager "bashiok" who answered a fan who contacted him through twitter, asking "can you confirm or deny Diablo 3 coming to consoles?"
Bashiok's answer was a direct "Yup. Josh Mosqueira is lead designer for the Diablo console project."
Mosqueira was lead designer on games like Company of Heroes and Homeworld 2 at Relic. He also worked on the unreleased Far Cry 3 before joining Blizzard last May as a lead game designer.