Thanks for the scoop on the battery life - sounds good. This might be another area where N91 will be better (despite the hard drive) than the N80 as the N80 comes with lower capacity battery and it is not the BL-5C so you won't be able to use BL-6C. Regarding my preference for N80, it is not a single feature that makes me lean towards it so don't try to pinppoint one thing about it. It's actually exactly the oposite. N91 is a good smartphone that stresses or focuses on one particular function - the music player. N80 on the other hand does not stress one particular function but does a bunch of things equally well. In my book, this makes it a better "convergent device" which is really what I want. I don't want a device that does a bunch of things well and one thing really really well. I want a device that does a lot equally well without bringing one thing to the forefront - that to me is a definition of a convergent device. I'm sure that the music functionality of the N91 will beat most other cell phones with music support out there, but the N80 will function as a music player good enough for me (especially with the 2GB of storage that I have already aquired for it) while also doing a bunch of other things pretty well. So, to reitarate, while no single feature of the N80 is really all that much better than the N91 (couple of them are a bit better and some are worse), it is the very fact that no single feature really stands out while all of its features are pretty good that makes the N80 a more well balanced, feature wise, "convergent device" and therefore it is preferred by me. Nothing against the N91 of course. It is still a very good smartphone / "convergent device", but in my opinion, its set of features does lean heavier on the music player functionality.
I hope that I explained myself better this time.