I haven't been there for some time, but after latest revisions i must say somethin, and ask about other things.
What mean button in misc menu signed as "OpenGL-ES 2.0 Blitting"? It means that i am in this mode, or if i press this button i'll be switched in this mode?
I think you should rename this button (it will be more clear) for: "Switch to OpenGL-ES 2.0 Blitting" and "Switch to Old software Mode"
It's mot clear for me now because when i see on this butoon "OpenGL-ES 2.0 Blitting" i think i'm in this mode, BUT games without marked "Screenfiltering" looks exactly same like in second mode, and with checked this button frame rate is fatal (<45FPS). When i have "Old software Mode" and i check "Screenfiltering" framerate is abot 60 fps (tested in Final Fantasy Tactis).
As i remember, when you released 0.11.40 revision, you said that OpenGL-ES 2.0 Blitting mode has some sort of filtering automatically build in, and is even faster that old software mode without it. In rev 0.11.40 it was true, but now it's not looking so good. Explanation above.
Next thing: in static 2D screen (like Menu in FFT, Chrono Cross), especially with Sreenfiltering on, frame rate is fatal (about 35-45 fps) , when in 3d it is 60 fps) it's strange for me, because as i think components of phone/tablet/whatever else, are a lot more stressed in filtered 3d dynamic scene than in filtered static 2d screen, or i thing wrong?
At last but not least
Sound. When i see in every next revision description "It's almost prfect..." or "really perfect now!" for me it's mean: "You'll have more problems now", "You don't want to hear this sound". Why? for example in last revision Sounds in FFT, are totally messed up. Strange clicking sounds, messed samples during the battle (one sample goes over another) it's strange to expain, but it's sounds horrible.
So, in conclusion, I think this emulator is great, but for some reasons latest changes improved some things but broken anothers. I know, that you made great hard work on this emulator, and im gratefull for this, but im still waiting for revision that will be good as 0.11.40, and around this.