specswise, Samsung phones are right up there.....the GS2 will rock, and plenty of people will buy it, regardless of pricing...
and they're pretty open, although Fascinate development is a little slow, but nonetheless...it's getting dev'd on...
The Droid Charge should see regular updates since it is a Droid phone, and as long as you can remove the bloatware, I'm happy with Sammies...the Super Amoled Plus screen even at 800x480 will be brilliant