I've seen a fair number of bike riders around Seattle and Bay Area with the helmet cam's, and seen that a few hit and runs solved by them. Also, I've seen some

I've seen a fair number of bike riders around Seattle and Bay Area with the helmet cam's, and seen that a few hit and runs solved by them. Also, I've seen some amazing perspectives with these and "drone" quad copters, for < $4k, I think http://gizmodo.com/5900820/unbelievable-aerial-footage-of-bike-stunts-shot-with-a-nimble-dslr-drone http://gizmodo.com/5900820/unbelievable-aerial-footage-of-bi...