Not sure if anyone has posted this( searched for it by different names but didnt find anything) but I went looking through code.google for any other Emus for the PS3. I came across a port of VisualBoy Advance. Unfortunatly, it only has the Source for download. So hopefully it can be compiled or finished or added to.
Downloads - gba-ps3 - Project Hosting on Google Code
Just incase the source gets removed, here it is in the post.
Apparently some work had been done and was posted on 13 Oct 2010 .