Being a fan of STL, I've been looking for a modern way of GUI development.
It seems that the latest theoretical ideas were in ASL. At least, that is what theoretical papers on gui look at. For example, Algorithms for user interfaces (2009)
However, the latest change in asl was in 2010. The forums are also seem empty. It seems that ASL is not maintained and not used a lot.
I still couldn't find anything as advanced and generic. What do people use now that fills the gap?
It's been a few years, so I'm sure the original questioner has moved on by now. However, for anybody with the same question, it appears that development has moved to GitHub. As of January 2014, this is not stated on the old ASL website.