Just got one from Good Prophets. Theirs is called the Elipso. I had all kinds of trouble getting started with the safety feature on the battery. I've been vaping all evening with it (refilled the tank three times) and am getting good flavor and vapor. My only complaint is I wish the button wasn't quite as recessed, but it fits nicely in my hand and is a much better balance than my EGo. My only dry hits have been when I've somehow turned off the battery. This e-cig, unlike the EGo is light enough to hold in my teeth if my hands are full. The minor leakage is I think mainly condensation because of the design. I can cope. It stays in the cap, so all is cool. My major concern is if this design proves totally unpopular and I'll get stuck unable to get more tanks or whatever. I'm really loving the usb charger that plugs into the end so it becomes a pass-thru. Since I am almost always on my computer, I can charge it as I vape if it gets low.
At one day, I'm liking this better than my Ego. We'll see. I'm not sure about how I'm going to clean the atomizer, or if it is even going to need it. But I really, really like not messing with a threaded battery/charger/atomizer. Downside is parts are scarce.