You really can't tell the real battery life until you've charged/recharged it a couple of times... But mine is down to 46min/23% right now, with Safari and Firefox open, Itunes playing, keys lit over 50%, screen brightness 80%, playing Tetris and installing a bunch of widgets. I think it'll end up being well over 4 hours, maybe close to 5. I've also watched a number of videos on youtube and hulu... I have to say i'm impressed.
I only have good things to say about my MB so far...

I LOVE the sound of these speakers and the brightness of the screen.

I have NO PROBLEM with the glossy screen.

The lack of keyboard lighting was a problem last night as I was trying to type in a dark room, but today on the 2.4 model it's fabulous. I'm glad i got this.

i find myself not using the actualy CLICKING of the trackpad so much, and i quite often use the Four-finger gestures. Two finger scrolling is also not an issue for me, as there is SOO MUCH ROOM on this trackpad

battery life like i said above, so far so good..

battery cover - just a little loose on this one but good enough.
Overall, i'm impressed... my old Toshiba with Vista would've been through 2 battery charges by now
Important: Contributions Wanted
Anyway, I have updated the first post and added more data everywhere, plus links to important stuff. Let me know if you can think of anything I should add.

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Looks great! Very thorough.
I'm curious, how many of you have upgraded to the 4GB RAM? I think 2GB is fine for me right now, and will save the upgrade for a later bonus.
I bought this in Best Buy today just to have something when i'm sitting in bed, or want the MB in my lap.. It works great so far and keeps the temps about 5-10C lower than before....
http://www.bestbuy.com/site/olspage.jsp?skuId=8488745&type=product&id=1186003682035