The promises made in the long forgotten Yahoo! Messenger For Vista preview from January of this year are finally, seemingly materializing. Last night Yahoo! launched the public preview of the Yahoo! Messenger for Vista . And while many bloggers have been contemplating wether it was worth the wait, I say - "You Bet!". Yahoo! has done what the Windows Live Messenger 9 team should have done. That is; show how cool WPF really is! The fugly client of the Yahoo Messenger 8.x family was not only...