I've paired the MX4 to my iPhone and enabled my iPhone to be controlled by the mouse. It's neat. To easily switch to the iPhone, I use the Action Ring and use the easy switch method to move from my PC to my iPhone. Once switched to my iPhone, the actions ring will not come back up, so I cannot use the easy switch task in the Actions Ring to switch back to my PC. I am forced to use the manual button on the bottom of the mouse. It would be nice if the easy switch task for devices could be mapped to a button, so that when you were on the Iphone IOS, you could easy switch back to your other devices without having to flip the mouse over and use the manual button.