This is a BIG one for Canadians! Rogers has just changed the name of their iPad plan to 'Pay In Advance Data Plans' and extended coverage to their 'Rocket Stick' (USB 3G radio for laptops).
http://www.rogers.com/web/content/wireless_plan_landing (the bottom right of this page)
http://www.rogers.com/web/content/ipad-dataplans

This is WONDERFUL as they offer $15/month for 250MB of data, or $35/month for 5GB! If these prices are the same for the rocket stick, then you can bet that these rates will apply to the Galaxy Tab as well!

That's a GREAT rate and a very flexible service for those that don't want to get locked into a plan --> me.