Following the discussion in the 'Max converter' thread it appears we have to wait till Blender's 2.5x API stabilises to further any PyPRP dev.
But forgetting that, is it possible to start some design work on the UI? Do we have enough tech specs available from Blender 2.5 to know exactly what is (and what isn't) possible as far as UI customization?
I don't know my way around Python, but designing and spec'ing a UI is something I can do.
If we are to start PyPRP 2 from scratch and get rid of Alcscript in the process there's quite a bit of UI design work to do..
I have recently installed Blender 2.5 A2 to get a feel for it, the UI is definitely different, but it has a lot of good things going for it.