Flip side of such a complex and capable device, its so easy to kill the battery without being able to pinpoint the cause. The terrible battery life I got in the previous examples it mixed with days where I get pretty good battery life. I think we'll see battery life improve greatly once the N900 is readily available and developers etc. all have one and apps can be more thoroughly/widely tested.

Overall, given the capabilities of the N900 and the size of the battery I'd say battery life is pretty good. Although I see a good argument now for all the people who wanted the ability to create more than 2 profiles. BATTERY SAVER profiles, hehe.