TomW

The E61i replacement the Nokia E71 sounds like it matches your needs (mostly) I think it's not quite out yet but very soon.

check out sites such as

http://www.notely.net/ - lets you share notes with friends that are signed up, also provides org tools for students http://stu.dicio.us/ - i believe does the same thing but is down atm http://wwwnotesake.com/ - again same thing

there are others too