I don't know how useful the N810 will be for use as a student if you are really looking for productivity. The tablet is great for browsing the web, and definitely good for entertainment like listening to music and IMing, but I would exactly call it a productivity machine. If you were really trying to be productive you might do well with keeping track of a calendar or using an planner book/task list app which I have yet to find (there may be a decent online one), and if you really wanted to try to make the N810 work for you, you could hook up a BT keyboard and find the most desktop like word processing app you can find.

As a student myself the N810 is wonderful for checking mail, and keeping myself entertained while I'm not busy, but if I really need to get some work done I end up bringing in the VAIO UX180 UMPC which is a mobile powerhouse. Coupled with a BT keyboard and a wireless mouse I can get real work done nearly as efficiently as sitting in front of my desktop.