How to develop a 3D application with multi touch support?

Question

Is it possible to develop an 3D application in .Net (XNA or WPF) that would take advantage of Windows 7's multi touch support.

Is it possible to do so ?

Where is the best place to start ?

Answer 1

Start with gestures
Then dive into the API

Answer 2

First: The nature of what you display is independent of whether your application supports multitouch or not.

Second: I don't believe there's a great value in having 3D interfaces whether using multitouch or not: the thing you touch is probably plain (a monitor or something the like). Better go with 2.5D (use shadows to give the whole thing a pseudo 3D look, stay away from 3D cubes).

Third: Have a well concept of user experience. What will be touchable, how will the application react (animations, etc.). Have a great look (graphics) designed and be prepared to have them changed while implementing a multitouch application. Technically, make yourself familiar with gestures, APIs and whatever it takes (the hardware is a factor as well),

The second point can (and probably should) be seen as a personal taste...