This is one promising update, moreso than 2.0 IMO.
Global search, stereo Bluetooth, MMS, tethering, turn by turn GPS, copy and paste and finally the push notification.
A lot of people's "wish lists" would be fulfilled from that, I think. Couple that to new hardware in June and it will be that much sweeter. Little things like shake to shuffle also sweeten the deal.
*goes to download 3.0 OS via dev centre*