Keep in mind that no Newton is "small." They're pretty big, but still make great devices. I used mine a bunch the past couple years just because. If I could find a way to export spreadsheets from QuickFigure Works to Excel I'd use it even more. Like others have said, MP2000 or MP2100 are the only ones I would consider now. I started out with an MP100 and its just not enough. The extra CPU power and Newton OS 2.1 makes a world of difference in use. Also, the keyboards for the MessagePads are LOUD. Not something I would take to class and use in lecture as it would be quite distracting.