It’s free and it contains six add-ons to your Tablet PC. From the web page:
Take notes directly on your desktop for quick and easy access later. Jot down a phone number, directions, or top priorities for the day.
Use your tablet pen to select a portion of a website, document, or other content on your screen. You can add handwritten comments and then paste it into an e-mail message or other program.
Paint with your tablet pen using Ink Art, which simulates an artistâ€™s toolset. Choose from different textured canvases, paint brushes, chalks, crayons, and more.
Copy or stream media files from your home computer to your Tablet PC, so that you can enjoy your favorite music, home videos, or digital photo albums wherever you go.
Solve crosswords on your Tablet PC with your tablet pen. Twelve puzzles come with the game. You can also download a free daily puzzle and purchase more puzzle packs online.
Energy Blue Theme Pack
Brighten the look of your Tablet PC desktop, Start menu, windows, and toolbars. Also get a new Windows Media Player skin thatâ€™s customized for the Tablet PC.
Looks like some of these aren’t really completely new, I haven’t checked yet to see if there are really new features, for example in the Snipping Tool. Anyhow, get it here and have fun!