Hi,
I'm trying to survey the interest in a possible future crowdfunding campaign for a major upgrade of 4DTris. There is a lot to do, e.g. developing a mobile version with touch control or supporting 3D displays. If you interested, please help to spread the news. For more details see the announcement on the project page: https://launchpad.net/4dtris/+announcement/14191
Trailer of previous version:
https://www.youtube.com/watch?v=WO9SNW5Tp7A