I saw cozzocon's first look at this yesterday, and I have to say it's the first Joyetech device I actually have some high hopes for. The
tank was a flop for me, the eGo-C was an improvement but still insufficient from my point of view and barely an incremental improvement besides. The Twist, on the other hand, puts an actual buck/boost VV in an eGo form factor, and even though it's limited to 4.8V (and I'd wager 2 to 2.5A), this may end up being a very viable entry-level VV. Although knowing Joyetech, it'll be far from cheap.
I don't mind reviewing eGo-type kits save for that they're mostly the same, but this is one I'd be actively interested in checking out.