Mobile phones should be felt but not heard
I can never hear or feel my phone when it rings, no matter how loudly or how insistently hornet-like the trilling and shrilling and buzzing and fuzzing.
For this reason, I got very excited when I heard that they now make a Bluetooth bracelet that buzzes when your phone rings.
Better still though, I'd like a sticky Bluetooth (Gluetooth?) doodad that you could affix to a watchstrap or a belt or a ring that stayed charged by dynamo from the kinetic energy of my movements - that would be much less obtrusive.