comparing the specs to my touch hd I'm also worried about this.

my phone has the same resolution but a slightly slower processor and does multitask. with heavy use I do get a full day out of it 2 days with little use but thats with a 1500 battery. saying that the n900 does have a slightly smaller screen so will just have to wait and see.

Do you think maemo 5 will have better power saving features than WM? I know that WM loves to try and save power I spent weeks batteling with the power saving features to get an app I'm creating to work.