Hi @alestat, thanks for your suggestion… there are no current plans to integrate hand gestures into our software, however as our eye tracker come included with their own software development kits, there is nothing to stop other users in developing their own unique solutions!
I found one such project here that might be of interest to you @ http://craigwoollard.com/control-spotify-leap-motion-tobii-eyex
Also, if you are a developer then please check our the Tobii Core SDK as designed for the Tobii Tech Range of eye tracker @ https://developer.tobii.com/consumer-eye-trackers/core-sdk/getting-started/
With samples included @ https://github.com/Tobii/CoreSDK