Well I have not, but that would be interesting... But if using a keyboard also it could work well. Things like using the fade slider could be a challenge based on my experience with touchscreen computers. Try dropping the res on the computer so the buttons are bigger. Please post how well it works.
Other than turning off Windows updates when on a job, works fine. You can issue the command: net stop wuauserv to temporarily shutdown the update service when using the ATEM software.