content: Actually the frequency range of Bluetooth is a superset of 2.4Ghz WiFi.  Instead of being a good neighbor and looking for an uncrowded channel in that range, Bluetooth continuously rotates through the entire range, so that whatever channel you pick for WiFi it will screw with it.  And it still manages to have horribly low bandwidth and latency higher than you can get to other continents with a wired connection.