My thoughts last year:
http://www.bikeforums.net/showpost.p...9&postcount=66
From this thread:
http://www.bikeforums.net/showthread...59#post7311859
Cliff's notes: I think that if you're in a position where you need a turn signal to be safer, you're dependent on the ability of others to pay attention and decipher what they're seeing. I don't put that kind of trust in people on the street.
Another post I made in a later thread:
http://www.bikeforums.net/showpost.p...3&postcount=14