Gaming iOS/Android SNES joypad...

[spinal_cord]

Here is the situation, I have an AVR based adapter to allow a SNES (or NES) joypad work on a range of systems, through USB keyboard emulation. Currently, the firmware allows the following --

• iCade controls
• Xperia Play controls
• Normal(!) keyboard controls
• Multimedia (play/pause, stop, next/previous, volume etc.) controls
• All buttons can be reconfigured in keyboard and iCade mode
• Configuration of buttons and mode switching is done via a menu on virtually any system (tested on Windows, OS X and iOS).
• iOS onscreen keyboard toggle

Can anyone think of any other features that might be useful?