We are currently reviewing various user interfaces available for our project which utilises the i.MX6.
One of our discussions is with the Unity team (Unity - Game Engine) who have official support for Android + ARM, Linux + x86, but not Linux + ARM. It appears that they have a proof of concept implementation internally, but are looking for the business case to warrant official support.
I'm looking for others in the community who may have a commercial interest in having the i.MX6 officially supported as a target platform.
There is a feature request which can be voted for, however please get in contact with me directly if you are interested so that I can make your interest know during our discussions with them.