I've had drawings drafted for the old PS1 monitors for this application for 2 years and have never gotten the gumption to do it. I think it would be cool, but a 7" monitor would be a tight squeeze, IMO. THe PS1 was 5" and was tough to draw in there correctly wihtout making it look like pac-matt from crapmame.
Right now, I have a 22" widescreen in my cab in a big square monitor opening. It makes the monitor look really small. I am pretty sure that I have enough room to bump the monitor up and locate the mini monitor. Maybe it will take up some of the dead space near the monitor.
I think it would be totally do-able, but yes, the software side of it might be tricky. Something along the lines of detecting the game (how? maybe the window name changes?) then loading up the equivalent named jpg into that little screen.
I've been messing with the program AutoHotkey recently. Great little program. It's pretty much like writing macros for the OS. Anyway, there is a command to detect the active window name and type. As I said earlier, my biggest concern is controls when running an emulator. I think it would be possible, using the program to detect the emulator based on the window type. Based on this, AutoHotkey would open a picture to the mini monitor that would show the controls. I think that that would work for now. Maybe eventually a way could be found to open control diagrams for specific games, but off the top of my head, I'm not sure how that would work. Just thinking about it has convinced me to go ahead and buy it to experiment. Shipping from South Korea to the US could take some time though
