Apple is not even close to a monopoly in cell phone hardware so there is quite a significant difference. There are many other alternatives to the iPhone. Apple

Apple is not even close to a monopoly in cell phone hardware so there is quite a significant difference. There are many other alternatives to the iPhone. Apple rejecting Google Voice doesn't preclude anyone from getting an Android phone or BlackBerry instead. As long as that healthy competition exists Apple has nothing to worry about. If they were to build a monopoly in cell phone hardware they would have to drastically change their business practices or face the US DOJ and EU.