I don't think it's possible, your Android tablet can't act as a receiver for multiple bluetooth devices. I think the best you can do is using the tablet for navigation and music, and the iphone for phone calls. Both devices would need to be paired to your Cardo. If you have a Verizon tablet with SIM card and Verizon iPhone, you can answer calls and send text messages from either device. Verizon has a plan and app that lets two devices act like one number.