Some that caught my eye:
Best Social Media Management Tool: Hootsuite (how can I resist experimenting with that?) Many of the people I follow send their tweets from this platform which manages five networks for free simultaneously.
Best Music Discovery Service: Fizy
Best New Gadget: iPad -- hard to believe it's less than a year old!
Best Mobile Game: “Angry Birds
Best Mobile Platform: Android (now the top selling smart phone--who knew I was this hip?)
Do read all the way to the bottom of these impressive winners because just to read the corporate sponsorship of Mashable is fun in itself!