That Boomer taillight is pretty nifty! I used to have a Frog. It was fairly useless, but I liked how easy it was to attach and detach. I'm glad to see that Knog has applied that concept to a more serious taillight.
Perhaps I'll pick one up when the mount for my Superflash fails. And it will fail; I haven't even had it a year yet and I can already tell that it has weakened.