After fiddling with libc from Debian, I was able to finally compile Microwindows for the Psion. It works, well kindof :)
It seems that the framebuffer is trying its hardest to work, but it seems to swap around the pixels every certain number of pixels, so you can see what it is trying to show, but it is garbled.
I know nothing about the fb device, so it looks like another night of caffeine will sort that one out. Don't you just love reading source code :)
The CF is still holding up, looks like I can consider the patch I made as stable, and submit it to CVS.