We continue to note minor new, undocumented features extant in iPhone OS 2.2.
"Update All" back The ability to update all applications with the press of one button--a feature that was disable in iPhone OS 2.1--is back in iPhone OS 2.2.
Locked screen screenshots iPhone OS 2.2 now offers the ability to snap images of the locked screen. To take a screenshot: while holding the home button, press and release the sleep/wake button. A screen flash indicates that that the image was captured.