I'll take the slider if it's a dual core, but no way will I take another single core. My Infuse is going back on the 20th, so I guess I'm going to be without a phone for some time. (Yes, I'm with AT&T, sadly). 512mb ram is just way too low for my standards. I'm usually running in the 200mb zone with nothing open, it's stupid.
That will be the case on all phones that have skins since the skin takes up some of the ram. I think it should be dual core slider but then again I dont think verizon wants to undercut their bionic sales. I guess we will see soon enough.