1. BENEFIT FOR ALL HARDWARE BUTTON USERS (not just Xperia Play) - Add option - When overlay buttons aren't drawn on-screen, they should not be there at all.
For my setup I'd ideally like to show/use only the shoulder buttons on-screen (L1/R1 and/or L2/R2 depending on the game) and I'd like them to appear in the lower corners of the screen. However, even if I don't "draw" the other buttons, they are still there on-screen. And since they are still there, I can't move my L1/L2/R1/R2 all the way down to the bottom corners. And touching my bottom corners uses the non-drawn but still-there control pad and 4 primary buttons. Not good. Of course, I haven't used FPse long enough to know whether or not this is a bug or intended design.
2. BENEFIT FOR ALL LANDSCAPE MODE USERS - Add option - Maintain original 4:3 ratio.
I'm one of the people who has a hard time coping with the "squashed" look of legacy 4:3 images converted to widescreen. I see other posts about pixel scaling and such. While that would be nice, I'd be much more interested in just being able to maintain a 4:3 screen ratio.
As noted, there is a 4:3 option. if that's not working or you have issues with it - talk about it in a new thread or in the main feedback thread.
For the buttons issue - I just tested on my phone and it works fine. If I turn off specific buttons, and then try to move the other buttons around, I can put them wherever I want. Again, if that's not working for you open a new thread or comment in the main thread.