Hi @wess, thanks for your interest. If you are intending on using your eye tracker for gathering user data and statistics (as it seems you do) then please bear in mind this requires the purchase of a special SDK licence.
Incidentally, there is also the option of purchasing a licence to use the Tobii Pro SDK in conjunction with your eye tracking on Linux, although these bindings are intended for analysis not interaction purposes.
For the time being, we do not offer a Linux solution out of the box, but hopefully soon. Thanks.