First I'd like to make a suggestion, add an off-topic Diablo III forum's section? :P
I post this here because there was nowhere else I could think of and it's still Blizzard related.
It's funny how WoW serverse have been down now for like 10 hours of extended maintenance, with less then 30 hours before the release of the xpac (and it's not even xpac related!)
I can assume B.net 2.0 won't be immune to that kind of thing that can happen to any games really... Nothings perfect