This ThinkPad has the brightest display I've ever seen. It's brighter than a top-end 17inch monitor (mine's an IBM P77). I usually don't run it at maximum brightness so I have a lot of time until it gets dim.
Oh the display has one of the neatest features yet - a little lamp on the inside top frame that illuminates the keyboard with a faint glow, like bright moonlight. You can work in the dark with this little gem.
-drl