I agree with the n900 comment - that is the thing that will kill the n800. All of these things are different. Sometimes when people don't like something they feel that some next thing is going to kill it off, like the iPod being killed by everything going.
My iPod doesn't make a statement, and it doesn't have any DRM on it, it just plays music. I love iTunes. i used it before the iPod, and I used the iPod before the music store. The combination is perfect for a large amount of people (including me). And it is a most people thing.
If people don't want it, then fine, don't buy it, there are plenty of other things available that do similar things in different ways, but don't assume that means something you do like will kill it.
My mum had one of those creative things (she wanted a cheap music player). She could never use it, so she got an iPod and loved it. Doesn't mean the creative is bad, it just wasn't the right thing for her.
I bought the 770 knowing it was already obsolete, but nothing kills it (not even the n800), as it does what I want. I would still be using a newton if they made a smaller one with more storage.

The other thing I don't get on some of these posts is why nokia are marked as the underdog to apple. Nokia is the largest player in the largest mobile markets in the world, apple is just a very tiny part of the US phone market. I don't think nokia have that much to prove!