Touchsmart TUIO is a free, open-source TUIO bridge application for Nextwindow API-compatible touchscreens such as the ones being used on HP Touchsmart PCs. Even though it runs on Windows XP/Vista, it is based on code from Touch?, a free, open-source multitouch tracking environment for optical multitouch table under MacOS X.

The application uses the Nextwindow-supplied API to talk to the touchscreen and translates the tracking information into TUIO, which is a widely-adopted tracking data protocol for optical table-top tracking solutions. It is being used by many multitouch applications.

Using Touchsmart TUIO, TUIO clients can receive tracking data from a Nextwindow-API compatible screen. This enables you to use many multitouch applications developed for optical tracking solutions on your Touchsmart PC.

For more information on open-source multitouch, have a look at the NUI group website. For more information on Nextwindow touchscreen, check out Nextwindow.