Hewlett-Packard offers the tc4400, a Vista capable convertible tablet PC equipped with the Intel Core Duo processor.  The HP tc4400 has a wide angle 12.1" screen with optional outdoor viewable display for outdoor and bright light situations.  This tablet is a great notebook replacement which has all the features found in the Microsoft Windows XP Tablet Edition operating system.  A unique advantage of the tc4400 is that the accessories for the tablet are common with their other notebook computers, giving you a wide variety of compatible choices for expansion and productivity.

HP Tablet PCs