[supar]

In this area was hoping for the NoteSlate to succeed, but it seems that it went waporware.

For notetaking the refresh speed is not so critical, as the areas to refresh are limited to the writing spot. You would probably notice lag, but if you ever drew with heavyweight painting/retouching programs, lag sometimes is introduced by processing and you just get used to it (you just don't expect immediate results and keep going).

I would still prefer a slight lag and the ability to avoid a glass screen in this case.