I've been throwing around an idea for a space pinball machine for a while now. Kinda a spiritual sequal to Space Shuttle and Space Station. Basically, after filling up at the space station you are now traveling to different planets. Each planet could have it's own "gravity." For example: in space the playfield is at like 4.5 deg, on normal planets and your space ship it's 6.5 deg, on some planets it's 8.5 deg. It would use servos and accelerometers to control the playfield tilt.

This can be evened off a little bit with weaker solenoids. 30v solenoids may be all thats needed on a flipper to get the ball up around tall ramps if they're lighter, and 12v solenoids for jet bumpers/kickouts/etc. Lower power is always nice.

The power savings could be used for other features mentioned- mini lcd inserts, multi-displays (in playfield and in backbox), more powerful computer system, cabinet lighting effects, ect...