Thought I would take a stab at starting a thread on this new Bluetooth headset. I ordered this one because I just wanted to wait until I have confidence in the new 20s. I am new to the Bluetooth stuff so at $89 shipped from Revzilla ( They Rock ) I decided to get this and put in my sportbike and commute helmet. I got it Friday, but due to a lot of stuff going on last weekend I have not done anything other than open the box and look inside. If a thread somewhere has already been started then excuse me. I will be installing this ASAP in my Shoei RF1100, and will keep you posted. At this point I just wanted to get a simple headset for basic operations. This will be used with an iPhone 4S, ZUMO 550, and maybe a iTouch. But right now just the headset and iPhone. My priorities are to simply hear music and podcasts from my 4S. Being able to answer a phone call is second, and possibly connecting to my buddies BMW headset when we are on the sportbikes. The ZUMO 550 is on my GS which currently has a J&M CB2003 set up for Radar detector and Aux imputs. The future plan is to get a 20s and put in my Shoei Quest and get dump the wired setup. But the J&M has been stone cold reliable, weatherproof and never need charging. I can even answer a call through the ZUMO and hear the other party but cant talk. Anyway, chime in if you have used the 3S. Hope to soon be able to share my exp.