Palm've announced the Foleo which looks like a very interesting device, despite all the negative press. In particular, it looks like an evolution of the Psion netBook combined with the Linux goodness of the Nokia Internet Tablets.
The most annoying thing about my N800 is the lack of a proper keyboard, making it rather unsuitable for typing meeting minutes etc. A Bluetooth keyboard works, but is sub-optimal. Also, the screen's a fantastic resolution and pitch, however a larger screen is useful when writing documents and wanting to read them.
It remains to be seen, of course, how open Palm is with this; it could be remarkably closed, but if open enough could almost be the consumer-level OLPC that people have been wanting.