One of my biggest concerns was the amount of time needed to port Look at my Hair to Windows (I work on Mac). While Qt libraries should (and do) guarantee portability, I was worried about the openGL code and multi-thread support routines.
Instead, I was able to complete the port in one afternoon only: good news, this will speed times for good.
Nothing exciting, but here is a screenshot to “prove” that LAMH Windows version is “alive”!