The Nokia N800 I bought off ebay arrived earlier today, and I have to say that I'm already smitten.
It works well for instant, mobile, Internet acccess, pulling up most websites with the greatest of ease and actually presenting them quite nicely. It's handled google, wikipedia, livejournal, netflix, myspace, youtube and has only choked a little on the new yahoo mail.
I've also loaded up a bunch of PDFs onto a memory card and those look really good. I can easily see this becoming a quick, portable reading device.
There's even a few games! And I bet there's plenty more that can be downloaded.
Next step is to learn how to write programs for it and then do something cool. What, I'm not quite sure.
But, as a quick impression, I'm quite taken.