I was looking for rear view mirror options to use while riding dirt bike and came across this helmet. I'm going to get a $6.72 wrist mirror from JR Graham, http://www.jrgraham.com/itemdetail.do?action=prepare_detail&itm_id=129948 (http://www.jrgraham.com/itemdetail.do?action=prepare_detail&itm_id=129948) but the Reevu sure looks interesting.
http://www.webbikeworld.com/r2/motorcycle-helmet/reevu/ (http://www.webbikeworld.com/r2/motorcycle-helmet/reevu/)
Reevu MSX1 Rear View Mirror Motorcycle Helmet (http://www.youtube.com/watch?v=VYFla-d1lKA#ws)
Looks cool but I wonder how easy it is to see while wearing it?