Hi @chrisp, hand gestures based on image recognition is not currently part of the Tobii Business as we focus on making the best eye tracking experience possible for numerous sectors including gaming and interaction, scientific analysis and research and communication solutions for the impaired.
Whilst we may look toward implementing hand gestures in the future, for the time being, eye tracking is our key areas of focus whilst also allowing third parties to develop innovative solutions via our publically available Software Development Kits.