Yabbbut, I did read a thread where a guy & his riding buds used GMRS radios (the 5-watt 'license required' - but not needed to purchase & unenforceable - version of the typical 2-watt FRS units) with bluetooth in conjunction w/ a headset. They hacked a cheap push-to-talk microphone to make a bar mounted PTT button & had range for several miles w/ anyone tuned to the same channel.
Problem is, I don't think I wanna listen to that much chatter - it would really take some airwave discipline for that to not become a PITA!