Google’s Nexus One is one of the spiffiest mobile devices ever, packed with a 1GHz Snapdragon processor and 512 MB RAM. Hardware like this can definitely compete head-on with Apple’s iPhone 3GS.
Take a quick look at Nexus One’s capabilities :

Nexus One’s 3G Data Support : T-Mobile or AT&T?
The power packed Nexus One has support for Quad band Voice networks
GSM/Edge : 850/900/1800/1900 MHz (Quad Band Voice and EDGE Data support – T-Mobile and AT&T in USA)
HSPA : 900/1700/2100 MHz (Only T-Mobile in USA, No AT&T)
Google chose T-Mobile for providing faster data support in …