Is there no way to get a Nexus One subsidized on T-Mobile any more? I'm due a phone upgrade shortly and I'd be very interested in a Nexus One, but I don't see spending $500 for a phone. I plan on staying with T-Mobile anyhow, so it'd be silly to buy a non-subsidized phone. Why wouldn't I just wait for, say, the Samsung Gravity S and get that for much cheaper (hopefully) with a subsidy and contract renewal? What are my options here?