@debernardis - what is djvu (nvr mind i wiki it) and how can you convert to it on the tablet? This is pretty important. And yeah, most texts are horribly scanned and not OCRd. I spent 30 minutes increasing the contrast on one with GIMP, page by page (I don't know how to automate GIMP on Windows). Horrible...

However, IF the N900 has google gears, then you can take docs OFFLINE! That would solve all the problems. No need to sync with the PC or worry about word/openoffice format.