Debunkery is being served up today:
Download links are popping up, claiming to be the Diablo III beta. Those in the know are calling BS on the rumors, and we’ll echo that debunking. The game is still in its early alpha phase, far from beta, Blizzard hasn’t let a leaked copy get out for download, and if they did, it would be way, way larger than 600meg. (The last beta I DL’ed, HGL, was over 4gig.)
G4 quotes a Blizzard spokesperson throwing sand on the faintly-smoldering embers of believability lit by that Numa Numa-looking YouTube to have an early copy of Diablo III.
Video debunking his claims can be seen below the fold.