Microsoft's Windows 7 has published a blog post about what they're doing to make Windows 7 more touchable. You can read it over here.
With Windows 7 we have enriched the Windows experience with touch, making touch a first-class way to interact with your PC alongside the mouse and keyboard. We focused on common activities and refined them thoughtfully with touch in mind. You will have the freedom of direct interaction, like being able to reach out and slowly scroll a web page then flick quickly to move through it. With new touch optimized applications from creative software developers you will be able to immerse yourself as you explore you photos, browse the globe, or go after bad guys in your favorite games..