The majority of the points in iball's long reply are pretty valid, but I think this last part really hits at the crux of the issue, which is that Nokia has clearly and by it's own admission never positioned the internet tablet as a PDA. If that's what you bought this for then that was your first mistake.

Having said that, I did weeks of research before my purchase and it suits my purposes quite nicely. I knew exactly what I was getting into. I also considered the PDA question and decided that since my work does not require me to maintain a consistent database of contacts and such, the lack of PIM and sync functionality was not a dealbreaker for me. Being a Linux user I also discovered during my research that adding rudimentary PIM functions was simply a matter of loading up the correct repositories and installing the GPE apps if I should so desire. As to the slowness of page loading, I find it to be perfectly acceptable for a device of this size, and unless your used to surfing on a T1 line or something I think your perception of just how slow it actually is is a little exaggerated.

Rather than continue to carry on, let me just close by tagging on to iball's last point by saying that at it's base the N800 is simply a connected device for internet communication and entertainment when a laptop would be impractical or inconvenient, and to try and make anything more of it than that will almost guarantee disappointment.