if you want to know what developers are seeing about how to work with touch, multi-touch, and Tablet PCs in Windows 7 you might want to check out this document. The Developer Enhancements to Windows for Touch and Tablet inlcude info on The Math Input Control, Multitouch for Windows 7, Creating Custom Dictionaries for Handwriting Recognition, and Server-Side Recogniton.
The link takes you to a page where you can download a Word 2007 document.
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