*For iPad please read Minecraft, Skylanders, xbox, tablet, phone, whatever tech they are crazy about, because my ds is into more than one.
He's nearly 8, asd, and utterly obsessed, it's the only thing he gets excited about, the only thing he wants to do (unless something exciting like a day out somewhere is offered) if he has a friend over, all they want to do is play on it. They won't go outside or play with toys, he doesn't play with toys in general apart from the occasional fumble with a bit of lego. On beautiful sunny days he will throw a fit if I ask him to go outside. 
I don't know what to do. Getting rid of the iPad would break his heart. He has MUCH more time on it than other kids get because when he isn't on it he does nothing but mope and beg and cause trouble because he's bored. Any ideas?