Yes, as mentioned the N810 is targeted at a different market base. To be honest, I think the N800 is more a geek device than the N810.

Why? Take for example the GPS and keyboard. Geeks are generally more adept at setting up connections to external bluetooth devices, whereas people who just 'want things to work right out of the box' would prefer a built-in GPS and not have to configure anything.

Likewise, geeks are generally more inclined to pecking at virtual keyboards and using handwriting recognition, whereas having a hardware keyboard makes the NiT so much more palatable for the typical consumer.

Perhaps through market studies, Nokia has identified that its target market is less inclined to use 2 SD cards, especially with 2Gb of on-board memory, compared the 256MB that's built into the N800. By using a miniSDHC card slot instead of a full-sized SDHC, Nokia was also able to reach out to a consumer market that is exposed to such types of media today (e.g. how many 'normal' people do you know have SDHCs, compared to people who have miniSDs?), as opposed to the geeks who would happily source for SDHC cards which aren't commonly used today (e.g. most digital cameras are either on CF or miniSD these days)