Today I started working on an app to test Windows 8 touch capabilities with my Synaptics touchpad. The app kind of works at the moment, but only with one touch point. I haven't figured out how to get the number of the touch point in the touchpad packet data.
Download the app (link below) and run the SynapticsToTouch.exe. It should work now, try using your touchpad. You may want to calibrate your touchpad with the Calibrate button. Click it and follow the instructions.
Download v0.3 alpha: https://github.com/downloads/Digiex/...c3902b3a54.zip
Source code: https://github.com/Digiex/SynapticsToTouch/
Issue Tracker: https://github.com/Digiex/SynapticsToTouch/issues/
Please fork and fix any bugs you might find
Bug reports and feature requests should go to the issue tracker You can report in this thread too, but they might get ignored.