It's not
joyetech, there has been 10 or more models of variable voltage Egos well before the twist was even out. I've seen at least 2 pass-throughs in the past, one cycled through 3 voltages with a coloured ring and the other did the same with an LED battery level display. This looks like a true variable voltage and not "mutli-voltage" and says it does increments of 0.1 v, plus up to 6 volts. I assume the LED displays the voltage and/or battery level.
It's going to be next to impossible to find any information about this with such a generic name, unless you get lucky and someone here has one. You could e-mail vaporgeek and ask what she thinks of it or who makes it.
Personally I'd stay away, despite the pluses; higher voltage (which is kind of pointless IMO) and pass-through. A lot of these models had tons of little bugs and low production quality.