Several new and different things from a Tool here. Side switch, tritium tube in tail that is able to tail stand, added Strobe mode, and appears to be only available in Cree, no Nichia. And I believe the Stainless is new as well. I think I'll just stick with the Tools I already have since the Ant really doesn't offer anything so new and/or different as to make it attractive.
Now the new Duke is much more attractive. Again, Cree only, but it is designed to be able to use a 10400 cell as well as an AAA, for some serious output and run time. I kinda like the swing out lanyard loop in the tail, the the all over carbon fiber patterned body is kinda sharp. That one I may think about, if they ever offer it with a Nichia.