does it mess anything up if you install on say a T-Mobile branded 9700? Are these OS updates typically unique to certain carriers? i'm a newb to BB's (had iphones the last 2.5 yrs, a brief stint with a Nexus One, and now the wonderful 9700 ;) )

i don't want a bunch of crap from another carrier on my phone... also, will T-Mobile US eventually release this update as well? i'm in no rush...


cheers