For those that want the new baseband but do not want the hassle of flashing the sbf
t3hSteve from Alldroid has you covered. He created an update.zip that will update the baseband. You will have to reactivate your phone and you will have to sign in to gmail again but everything else should work correctly for you. You must be rooted to use this and it seems to work on both SPRecovery and Clockwork recovery.
http://alldroid.org/threads/16381-Ba...627#post572627