gosugenji has released Lua Devkit for the PSP, heres the details:
This handy little LUA App is for finding all your X's and Y's and even a REALTIME color picker, it overlays any LUA APP if you follow the Instructions in the provided .TXT file
I have provided my Sample PSim Date game with the program as an example..
-==The Keys Are..==-
Start = Call Devscreen
L = Call Logscreen
R = Call Colorpicker
X = Draw on screen
Square = Cancel line
Triangle = Clear log and screen?
Circle = Go back
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