We have also spent a lot of time on the user interactions. You will already find a few cool ways to interact with your applications. Different type of cursors (like a 2d or 3d cursor type), different kind of menu-systems and behavior like "tap&hold" or even a "tripple-touch-double-click" (say that five times quickly)...
Just have a look at the scripts and the prefabs we have developed. A Prefab is a type of asset inside Unity3d -- a reusable GameObject stored in Project View. Prefabs can be inserted into any number of scenes, multiple times per scene. When you add a Prefab to a scene, you create an instance of it. All Prefab instances are linked to the original Prefab and are essentially clones of it. No matter how many instances exist in your project, when you make any changes to the Prefab you will see the change applied to all instances. A lot of the used MutiTouch objects are allready made as a prefab (like some buttons, menus or mouse-cursors). For using them in your MultiTouch applications, you can simply drag and drop them on your scene.
You can see also a short video of Ben, demonstrating some "Tap&Hold" capabilities. Have fun!





