I've heard of an "end of September" 2.2 push for the Vibrant. Either way, a root and a custom rom are not a bad option either. Dual cores I read are not getting to the mass market by before end of 2011. I'm going to wait out for Symbian^3 and MeeGo and see how they play out. Both of these platforms have huge shoes to fill in after Maemo and Android.

The Galaxy S might have better DAC. In general observation without any testing, I did hear better sound quality with an AUX-in in my car. It could be a placebo effect, but I'd have to have both devices side by side, playing the same file using the default media players. I can't do that anymore.. lol. Verizon is great with reception, T-MO is spotty here in the DFW area. That's a first I've heard regarding the G1. I had better 3G results with the N900 than the Vibrant in all cases.