We’re wrapping up our Zumobi giveaway tonight, so head on over to our contest, drop your name and e-mail in the form, and you could win one of ten $50 gift certificates to Amazon. Haven’t heard of Zumobi? Well, they’re an up-and-coming free widget platform for your BlackBerry. Already running on Windows Mobile, Zumobi promises to bring content-filled tiles to your handheld which you navigate by zooming in and out on a four-by-four grid. Want to give it a shot? Head on over to http://get.zumobi.com/bbcool on your mobile browser to get going.