Since my iPads have cell service and phone number, not to mention speakers and microphones. Plus the cell carriers will soon allow VoLTE and Wi-Fi Calling, what is the technical reason why my iPad isn't a cell phone? I share my data between all my devices, but when I add a smartphone, the cell carrier charges me $40. When I add a tablet they charge me $10. Is the distinction really more of a legacy issue at this point?