of course it will also need to 'simulate' those stars' 'approx' galactic motion as well as our own sun.
Considering how little they actually move relative to each other that would be overkill. It takes thousands of years to make any real difference.
Not only that - the processing power of an iPod isn't enough to handle the complex demands of orbit stability. Most mobile devices run on a fairly low power ARM chipset, it has to be low power because anything high power kills battery life and your consumers protest.
Imagine having 3G, Wifi, bluetooth enabled then fire up orbiter iPod. Your battery life would last about 20 minutes.
Anyway, I digress. Orbiter on Apple IOS, Android, Symbian, Windows mobile or Meego isn't really an option.
It would take a chunk of RAM to work right, but using it you could make a planet's appearance vary by the season, or make aurorae, or watch the clouds move over Earth or any of the Jovians. I think, if nothing else, that would make Orbiter look incredible.
In progress for a while now:A autopilot MFD or module, that could control dockings, landing, liftoff, and where the spacecraft is going. Launch autopilots are common, but the rest are hard to find. AutoFCS refuses to work with Orbiter 2010 and shows nothing in the landing field runway.
That would benefit orbiter is a way.