I'll be honest, although I don't think anyone could accuse me of holding my tongue, but I don't like how motorcycle communication systems look on a helmet. You have this awesome, aerodynamic helm that's got dope graphics, great features, and cuts through the wind perfectly and then you go and add some ungainly thing onto the side of it.
You might as well be putting a massive current-generation Formula 1 spoiler onto a Ferrari Dino. It looks wrong and stupid, and I hate it. It's why I haven't installed anything onto my helmets, even though I have a PackTalk I absolutely could.
My daughter's helmet, however, is another story.