Using this with ipod nano is a nightmare - you mess around trying to pair with the SB2 headphones and then eventually when they pair you get 30 secs to a minute of audio and then it just goes dead and have to pull out the adaptor, put it in again, turn off the SB2's then start the pairing process all over again.
Furthermore - I tried this in the iPhone 4 thinking the APTx would booost the sound quality but it made absolutely no difference - there is no need for iSport adaptor with iPhone 4 - shame this isn't made clear in all the marketing gumph.
Lose the wires? Lose the will to live more like!