Do not bother playing Chrono Trigger on your Droid. It will only lead to frustration.
I'm a few hours into the game, at Lab 16 in the future world. You are required to open a door to progress the storyline, which can only be done by pressing "A" while holding the "L" and "R" keys simultaneously.
This is impossible to accomplish with Snesoid.
Not sure if it's a limitation of the Droid's keyboard function or the emulator itself, but it does not recognize you "holding" a button. I think when you hold down a key, it registers as if you are pressing it rapidly.
Either that, or the hardware/software does not recognize three keys being pressed at once. I've read somewhere that certain platformers are unplayable because you cannot move, run, and jump at the same time. I never thought that would render an RPG unplayable... this is especially disappointing because I just bought a Game Gripper specifically to play Chrono Trigger.
Don't waste your time like I did.
UPDATE: Problem solved!
Since I'm using the Game Gripper, my "A" button was bound to the "ENTER" key on the Droid. For some reason, The Droid/Snesoid treats the ENTER key differently from the other ones when two other buttons are simultaneously being held. When the "A" button was bound to any of the other Game Gripper buttons, it worked on the first try. A temporary reassignment of keys will get you through this part of the game. Those of you not using a Game Gripper should ignore this thread altogether.
As a side note, I tried playing Super Mario RPG and can confirm that you CAN press three buttons simultaneously (move, run, jump).