I disagree... for many, the phone / conversation distracts the driver from driving (for those same people, the colour blue distracts them from driving). Those people should not be behind the wheel. For me, the driving distracts from conversations. Ask many of my passengers how many times I've stopped mid-story because my focus was actually on the road. As how many times I've interrupted my own story with "that guy's going to cut me off" or something similar.
I wouldn't mind a device like this, at least to listen to music without having ear buds in my ear. The talking would be cool, but I'm sure my conversations wouldn't be in-depth, just quick and simple updates to the route, conditions, etc.
BTW, radios were also believed to be distracting when they were first introduced in vehicles.
To the OP, just make sure to use good judgement. If you find the wireless helmet headset / audio system to be too distracting, stop using it. If you don't (and make sure you're honest with yourself), then enjoy!