Got my helmet, minor issue right out of the box.
My B4 was installed by Cima.
There is a very thin flexible ribbon connector between the button module and the inner helmet assembly.
This ribbon comes out of the bottom of the module and wraps down and back up the inside and is inserted into a connector. You need to remove the Allen screw in the rear of the helmet and pop the cover off to see it. There is a piece of double stick tape securing this to the helmet. Tech support figured it out within a few minutes and we fixed it over the phone. Next time I put the helmet on it moved enough to break the connection.
I removed the ribbon, repositioned on the tape and re-inserted. Something I think I will be watching. I already think that is a weak point.
My iPhone 4s connected right away, and works as a phone. I cannot get the music to play though. As far as I know the 4s is A2DP and AVRCP capable.
At least from it working seamlessly in my truck (Ford with sync).
Didn't call support back on that yet, I will play around a bit first. Hardwired the iPod/iPhone sound great.
The FM radio is a major improvement over the Cardo SCALA
The phone rings in the helmet with whatever ring tone you use. With my SCALA's the system uses a generic tone.
I got the matte black with red striping. Looks good.
Maybe I'll have my swing arm rebuilt and wheels back on by tomorrow to give it a road test.
How about you Duane, did you order two?
JC - only one for now. Need to have Deb try on the sizes, she did not go to the bike show with me.
Once you go Schuberth C3 , is really hard to try anything else. I have had it for a year, I will only change it for another C3.
I tried out the Schubert' the NYC show. First off, it was a special at $699, plus $399 for the comms.
The comms, although built by Cardo, no one at the show could tell me if the Schubert version and the SCALA's could "talk" to each other.
What I did not like about the comms was that the unit was mounted in the removable neck dam, something I would not want to use during the summer.
Side by Side comparisons, the Nolan was a hands down winner.
So.......who you gonna talk to then? Oh, I know......you're planning a trip to Nor Cal and you got the B4 so you can talk to the rest of us. 
We were having a talk about it a couple of weeks ago. Since the B4 can have four others (with B4) connected at the same time......the guys will all be paired together and then the women can be paired together. 
One feature of the new B4 is that it is capable of using the FRS. It appears from the instructions that in that mode you can communicate with as many people as you have FRS's