I'm not much for gadgets but I picked up a couple of Parrot SK4000 bluetooth helmet kits and they are fantastic! Receive and make phone calls, built in FM radio, input for MP3 player, and earpieces/speakers with exceptional clarity, volume, and fidelity.
Both Suraklyn and I gave 'em a quick test yesterday and I was talking to him while he was on his R1200ST at 60 MPH and I could detect no wind noise at all. We swapped out and I took off on the R1150RT-P with the windshield all the way down and he said he could not hear any background noise at all. I also tested the automatic volume control feature and it did indeed increase the volume as the ambient noise level got higher with speed.
Just thought I'd give a "two thumbs up" on this just in case anybody was looking for such gear.