A big nah from me. The idea is nice, but watching both videos and reading comments, these seem average rather than the "great" they're made out to be. Obviously only demoing them would be the best indicator.
£287 plus vat(!) if customs doesn't get you it isn't massive amounts of money to be fair.
The way i see it is, wireless for outside use is pointless. Cable under your shirt, and into your zipped pocket or lanyard device if wanting security. These are bigger cups than other portable headphones too, so wearing round neck would be annoying as you can't turn your head. Also a single pivot point for the cups on an outdoor headphone, really?
No dedicated case, which many portable headphones come with. 3.5mm port not allowing bypass of internal dac is strange (from my understanding), but i guess not an issue for the intended audience. But could never see myself using these for gaming, how's that soundstage with the included dac? Having IEMs is also of huge benefit for outside use, less chance of damage, less obvious too which leads me onto another point. THIEVERY. Not only is stealing someone's phone easy, stealing a headphone with no firmware security is easy money.
The idea is swell, but i think at that price point you'll never get them doing anything well. I'd be interested in hearing their performance vs Senn Momemtums for example, which suck for gaming.
In regards to the headband design, an internal steel band can be bent. I have done that myself to a pair of dt1350's which were unfomfy for me, it helped a lot.
[edit]
Headfi video here sells the headphone a lot better, but it's still a hmmmm from me
