Currently Being ModeratedJul 4, 2011 11:21 AM (in response to mion16)
It works with the things it is designed to work with. i.e. headsets, headphones, speakers, car stereos, other iOS devices for peer to peer apps and computers for internet tethering.
There are over 20 different Bluetooth profiles - not all are supported by all devices. Apple chose to support the ones here: