Samsung just always seem to be last to the party with OS updates. I wanted the fascinate until I read all of the complaints about the other Galaxy S devices GPS not finding satellites or taking a very long time to do so, and being inaccurate. A coworker of mine has a Samsung 4G device on Sprint and he complains about the GPS too.
Sorry to correct you but it should be the last of the party with OS updates, IN the US. Elsewhere every GS1 already got GB before the US even got Froyo. Soo yeah