Be careful, there's a very recent build circulating with a nasty virus in it..
I haven't been able to confirm which build yet but my sources (whom I trust with my life) are telling me it's Build 7229 (Both flavors).. But there are also reports floating around saying that it's 7227.. so just a warning to all you who just can't live without using leaked interim builds..
I'll post which build it is for sure as soon as I hear back from my source..
EDIT:
Looks like Build 7229 is fine (both flavors).. It's 7227 that's apparently infected..