Microsoft's already let out word that it's working on Windows 7 Service Pack 1, but it looks like the OS' first big update has now leaked out slightly ahead of schedule -- or a recent build of it, anyway. As expected there aren't any significant changes that are immediately apparent -- the biggest is the added RemoteFX functionality when paired with Windows Server -- but the install process is apparently at least much faster than it was for service packs on Windows Vista. Still no word on a proper release date from Microsoft just yet, but you can now check out a few more screenshots at the source link below.

More: http://www.engadget.com/2010/04/07/windows-7-sp1-beta-leaks-out-screenshots-ensue/
Link: http://geeksmack.net/microsoft/1235-exclusive-windows-7-sp1-beta-leaks-screenshots