There is no way to be too visible. We are planning to shoot some high-qual video of the various things people use when riding at night to see if we can really show what's most effective.

I think a lot of us (myself included) are not as visible as we think.

I bought a couple pair of these this week. I figure they will serve well as turn signals of sorts - they don't offer a lot of warmth, so order a couple sizes up if you are wearing heavy gloves underneath. I was actually thinking about cutting the palms out of mine to allow my bike glove grips to be accessible. (They are mens so they are pretty good sized anyway)

http://www.amazon.com/gp/product/B000F1OZ46