As of right now, if you own a T-Mo Vibrant, you can download the 2.2 Froyo update for your phone using the Kies Mini software that Sammy uses to push builds to devices. If you have questions you can visit the T-Mo discussion thread by clicking here.
We're giving stuff away to help celebrate our tenth anniversary. Are you in?
We originally thought that this would be an OTA upgrade, but I am glad to see it as a download so people can get it when they are ready (NOW).
Let us know how the upgrade process goes.