I think Vilmos was planning to port to Wiz himself (although I could be mistaken). I'm not in the position to share the source as it is not mine to share. I could do a port, I would just need to be pointed in the right direction on how to setup a Wiz toolchain.
Of course, with GINGE coming soon, it may be a bit redundant making GP2X ports when the wrapper can run them so well.