5 hours. LOL. My 2.33 ghz MBP has NEVER gotten 3 hours. Not once. The typical operating time is 2 hours. 1.5, if things are heavy. That's on a new (<1 year old) machine in typical "power user" tasks... such as web browsing, iTunes, and obviously using some backlight as well, in order to see properly. 5 hours is a complete load of crap. Nowhere near reality.
2/26/08 at 3:55pm