Especially as there is already a motorcycle helmet out that uses Bluetooth to wirelessly run a set of headphones built into the helmet. Anything Bluetooth-enabled can interface with it, and look, ma, no wires! Once they put in a mike as well, you’ll be set; Bluetooth cellphone calls, two-way radio, rider/passenger intercom, radar detector audible warnings, GPS nav directions, music… You name it, all piped in wirelessly.

When they do that to a bicycle helmet, I’ll be more impressed.