Question on Nexus One phone plans

[Bujin#IM]

Hi,

I'm looking at picking up a N1 from Sprint. My current phones are on a Family Plan, so I'm curious as to whether Google only sells their phones with individual plans when you purchase on their site.

I realize that Sprint hasn't released specific pricing, but I wondered if there were Family Plans through T-Mobile, and if the Nexus One is able to be purchased through one currently.

Thanks!