I'd have bought a Nexus One from Tmobile ($180 w/2yr contract), but I bought a G1 this past spring, so I already signed for another 2yrs. Tmobile here in Seattle is really fantastic, no signal issues. I've been with them since I lived in Reno, going on about 6yrs now. No issues with them. I love the OS a lot, but the G1 is…