There has been a rumor of the Beta of Diablo 3 for release this summer, reportedly it'll hit in time for Blizzcon 2011 or the upcoming Blizzard press tour. Blizzard has been keeping quiet and not contributing to the community speculation and rumors, until now. Of course a little icon may be jumping the gun a bit, but this is Diablo 3 we're talking about. People have noticed Diablo 3 beta icons on both the EU and US portals of Battle.net.
Should we get excited? I think we should.