I think PNJ raises a good point. Most helmets do not provide protection for the side of your head, the back of your head or your face. In only accident I've had where I hit my head, only the very front of the helmet was impacted and a peice broke off. I still have a scar above my eyebrow from this accident. I know in Pete Clark's little pedestrian caused accident he also hit his face. In the link Pete posted, the cyclist also hit his face.

My point is that this seems like a common occurance. Yet most helmets don't address this. The modern helmet seems designed for a impact to the top of your head. This kind of accident seems less likely to me than an accident where the cyclist hits the ground with their face. Does anyone agree?

As for style, most new helmets are more stylish than my unmanagable hair.