I bought a shankless (still in the USPS post-hurricane queue), my 2nd epipemod, due to the benefit of shorter overall setup for more stealthy and portable use. The atomizer/cartomizer/tank/clearomizer etc. acts as a shank - add a driptip or pipe stem and that adds to the length.
My main device is a bent shank epipemod which I primarily use with an Ego Mega B atomizer plus shorty dripping stem or long churchwarden, but even when I do bring it out, I find it awkward to use it on the go. I expect that the shankless with the Phoenix atomizer tank might be pocketable and stealthily-or just much more conveniently-vapable.
BTW, the corn cobs are super-cute and come with both bent and straight shanks. I'd get one - if it were shankless