Talk time 3hrs + is about right
11 hrs standby seems low - my 3GS (used constantly everyday since purchase - push trapster, push mail, wifi seek, 20 - 30 SMS a day, iPod, maps, app store, Safari, MotionX, personal Accounts, iDisk, JotNot and a few others) has about that or less, however,
my wife's 3GS gets 20 hrs + standby (real standby), at least a full day between charging