iOS is just OSX really 
Android is Unix...
Symbian... Is... Err... Does any one still use Symbian? :lol:
Android is Unix as AmigaOS is TripOS if you want to get anal. And yes, for a device with a 20-ish button keypad which main function is to place telephone calls Symbian still rocks.
I wouldn't shed a tear if touchscreens were to go extinct and crawl back to the feces filled hole they crawled out of.
