I love to hear the bickering of the 'great OS battles'... Can't we just admit that nobody innovates, it's always borrowed from somebody else's idea... Case in point... Apple's "Dashboard" you are comparing to the "Sidebar" in Longhorn, HOWEVER, it is more akin to Arlo Rose & Perry Clarke's "Konfabulator" which was out before Microsoft's implementation of the "Sidebar". So, who's innovating and who's copying? We may never know... Reference: http://www.konfabulator.com