XP SP1: Sept 9th

Quote

The changes supporting Windows Media Center PCs and the Tablet PC will be available only to PC manufacturers. Hewlett-Packard and some other computer makers are prepping Windows Media PCs for holiday release. These systems will include a second user interface for accessing Windows XP's digital media features via a remote control.

The Tablet PC, slated for Nov. 7 release, is a notebook hybrid that allows people to input text by writing on the display with a stylus. Microsoft sees big potential for the devices among businesses and schools. Microsoft Research, for example, has produced a short film demonstrating the benefits of the Tablet PC for in-classroom and remote-access teaching.