Probably final build. They wouldn't bother making an installer if it wasn't ready. And it's called biohazard in Europe, so that just means it got leaked from there rather than the US.
In semi-related news: There is some hope of playing this on xp.
Because dx10 will be vista only by Microsoft's decision, not technical limitations, the WINE team is considering porting their implementation of dx10 over opengl to windows, so you don't need to buy vista to use it :)
New...
From what i've been able to tell it's because they all are using a radar of some kind to track player positions. They have the position(and all other stats) of every player on the radar updated each time the server sends the client new info.
ps, the above is mostly just guessing, but it makes...
I doubt Blizz will make another mmo. A lot of WoW players played Diablo 2 and would probably like a third, and possibly switch over to it if it was released. The two together would then have a slightly higher number of players than WoW does now, and Blizzard would have to maintain servers and...