Hi, I'm sorry for be late, I hope this subject still be worm. I had published some time ago a simple post about MVVM in UNIGUI using KNOCKOFF (from Stefan Glienke) adapted to UNIGUI. Here is the link.
Post´s Link
Since that time, I have been working with this pattern in UNIGUI with TMS Aurelius, and yes, code is cleaner. The limitation I found on this approach is the creation of an adapter for each component. But it is working.
I hope this could help.
Regards