There are lots of new models of Tablet PCs lately.
I doubt that there has been a time when there were so many available.
I just finished a posting in a forum to someone who was trying to decide between the Toshiba M200 and the new R15. After 45 minutes of typing (I'm slow) I remembered a tool that I put together to help people work through the choices. Let me share it with you.
Link: The Tablet PC Rationalizer