There's a great deal of chatter on the web with regard to "a new CTP" (Community Technology Preview) of Windows Vista. Personally I'm participating in a Microsoft Most Valuable Professional (MVP) community gathering - just like online there's a great deal of discussion about this build

Build 5342 IS NOT a CTP - it's purely for a small number of beta testers. CTPs go through far more testing than interim builds such as 5342.