Requested features (see also bugs.txt)
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- Option for default on-screen key theme in AndroidAppSettings.cfg.

- Select between normal mouse input and magnifying glass/relative input automatically, based on screen size.

- Show/hide screen controls with longpress on Text Edit button.

- Floating on-screen joystick - initially invisible, it appears when you touch the screen,
  centered on your finger, then it slides with your finger if you bump the joystick edge.

- Export phone vibrator to SDL - interface is available in SDL 1.3.

- Control screen brightness with SDL_SetGamma().

- Zoom in-out whole screen in SW mode with some SDL key or gesture, as in AndroidVNC. -

- Support of libjnigraphics (it will disable on-screen keyboard, only SW SDL screen surface supported).
  This is not relevant already, as every device around is fast enough with GL.

- UQM: On-screen buttons are re-appearing when using gamepad and switching between game screens.

- UQM: Redesign gamepad controls.

- UQM: Arrow keys do not steer the ship.