Spent all last night working on GUI/MENU, also added fully mapped amiga OSK.
For On Screen Keyboard. I have gone PSP Native keyboard.

Gone overboard on OSK. It will select the PSP's set native language on boot, so if PSP is set to French.
PSPUAE keyboard is french, in workbench set locale to french. So it works like it does in real life.
You can select language in input menu, via left and right. clicking on it, brings up keyboard preview, which you can also cycle through and it shows which keys change depending on language.

Will just finish keyboard stuff off, then will get to testing on Phat.

EDIT:- Just side tracking to look at ways to flicker fix.
EDIT2:- Added an flicker fixer that detects highres and fixes it. Also went a bit nuts on filters. We now have;

1= Scanlines (Light)
2= Scanlines
3= Scanlines (Dark)
4= Aperture
5= Slot Mask
6= DOT Mask
7= WARM
8= Cool
9= Phosphor