I've got a handsfree in the R53, but in the work car, it's hard to get anything installed, as you're changing car every other day. I've previously been using a Nokia HSW4, which is fine, but any bit of wind noise upsets it to the point where callers can't hear you, and the battery life isn't the best either.
I've just bought the Aliph Jawbone 2 headset, which uses 2 microphones to cancel out noise. One on the outside like a regular mike, but a second one is pressed against ... you'll never guess ... your jawbone to get sound through bone conductivity. It compares the signal, and using US military sound cancelling tech, deletes all the background noise out. Even in Gosia's cabrio, at 60mph with the roof down! And the battery life is savage. It's also got no visible buttons, everything is done with touch sensitive controls.
The best bit about this though, is that the guy who made it, Yves Behar, is the same guy who made the MINI Motion watch too. So it has a link to the MINI world too What do you use in your Mini/MINI for a handsfree?
[img:357:282]http://www.itechnews.net/wp-content/uploads/2008/04/aliph-jawbone-2-bluetooth-headset.jpg[/img]
[img:300:200]http://motoringfile.com/pictures/2006_giftguide/300/mini_motion_watch.jpg[/img]