just a warning. if your system is moded and you use backup's i would NOT update to the dashboard that came out in Nov 1st 2010.
because if you do and attempt to run a backup copy of Fable3 you will not be able to play it and will most likely be flagged for a ban etc.
p.s. me personally i am waiting til all this AP2.5/SSv3 stuff is sorted out before i update as i am on v9199 dashboard which can play backups of Fable3 which only actives the new protection once your using the new dashboard.