So today Samsung officially announced the Galaxy S "premium" accessories. They look like they'll do the job. I was looking for these, for whenever the Fascinate comes out ...
I can't find the vehicle dock anywhere on the Samsung site. I think I'll stick with my $14.99 Arkon vent mount, seeing as how the desktop dock is $40, I'm guessing the car dock will be around $50. And who knows if you can use a case with it, I know my girlfriend's Captivate fits with the Mega Grip, so the Fascinate should fit.