Thank you everybody for the information. You've pretty much confirmed what I'd guessed -- that the N800 is a work in progress.

From what you've said and reviews I've read (and YouTube videos I've watched), it sounds like the N800 really could benefit from a faster processor. If history is anything to go by, the N800 successor should feature a faster chip. It sounds like even a boost of 100MHz will be a big improvement for Javascript-heavy pages.

Bearing in mind that I'm planning to get this for Xmas, it makes a lot of sense to wait and see what Nokia announce closer to December.