Looks like Patrick is planning to update the light at some point, adding the knurling that a number of people have requested.
Once he does, they have a sale.
I'm not going to give up the crazy burn time of my Photon Torpedo, but the smaller size definitely appeals to me for us on my right side backup light, which will help avoid interference with my can light. As a third light source, the shorter battery life matters less. I'm looking forward to it!