From Microsoft Watch
Quote:
"While Microsoft officials had told its core of elite beta testers to expect the next Windows Vista milestone on Tuesday, February 21, it now looks as Microsoft is now planning on delivering the code later in the week. Our sources are saying Vista Build 5308 will likely be christened the February Community Technology Preview (CTP). And it’s now sounding like testers will be able to start playing with that build on Friday or Saturday."
Read the rest here
Well, I don’t mind, gives you a chance to check out my preview of Windows Vista Build 5270 here
Teching It Easy 
Is it really important that the build is no.5308. I mean : does it have a significance or it could have been no 5307 or 5309?
I would suspect that it does have some significance, since a daily build is compiled seeking a level of quality. It seems that desired level of quality was found in build 5308.