Diablo III has officially been announced via the Blizzard Worldwide Invitational event in Paris, France by Blizzard CEO Mike Morhaime. The announcement came during the opening cermony and was met with massive applause and adulation from the large crowd.

We were able to remotely liveblog the conference for a while in between signal losses. We got a few raw captures from the footage shown.

In-game images and large splash after the break!

Official Site
Press conference still going, Blizzard CEO giving overview of Barbarian class with in-game play.
Barbarian class looks to play very similar to Diablo II, but is able to use the environment to aid in his attacks. Using debris, etc. Also will have mercenaries in Diablo III to aid you in your quest.
Some images from the stream:

Another in-game shot from the stream, notice the new skill bar in between the two indicator globes:

Also shown Witch Doctor class which can summon walls of zombies to attack your enemies. Notice the new all-3D game engine. The graphics of the stream are definitely better than screenshots can convey. Can’t wait for official images to come down the pipe.
Now seeing a boss battle:

The action seems fast and furious as we have come to expect from the series. The atmospher of the game based on the footage shown seems to be ‘right on’ and I can’t wait to see more.
And thats it! More to come in time…