My own "business use" never involves writing word files, so no problem there. I write a lot of other stuff though, so I bring my foldable BT keyboard, and a travel router, and an M1200 Holux GPS (which incidentally works fine also with my Palm T3+TomTom, which I use if I need to do real car navigation). With this I'm very well covered for almost anything.

Now, if I could just load up presentations to an SD card and wirelessly run them from my N800.. there's probably a way (some of the earlier discussions got us _almost_ there..).