This story was the one that broke the camel's back for me, in terms of waiting for Samsung/T-Mobile to ship a 2.2 update for the Vibrant. I dug around and found "Eugene's Ginger Clone" 2.2 ROM and installed it yesterday. My Vibrant is noticeably snappier, battery is lasting longer, and it's now devoid of bloatware.

Latest release announcement here: http://eb-productions.proboards.com/index.cgi?board=samsungs...

Video overview here: http://www.youtube.com/watch?v=sCKsiH0wWgg