I live in Durham, UK, and up to now I never heard of this man or his company - but perhaps that's because I don't work in the right sector, which would probably be law enforcement. I do know the Abbey Road Business centre - as you would expect, it's home to about a couple dozen limited companies, and offers "virtual offices" and mailboxes, starting from £30 per month. FYI, setting up a limited company costs about £20 in fees here in the UK and has zero capital requirements or auditing, so it's by no means a mark of respectability.
I don't think we have to discuss whether the "X1" watch / phone is technically possible. Fortunately, it seems pretty clear that Mr. Gill will not reach his funding target, but that may not be necessary to defraud his investors, as this is a "flexible" campaign, meaning he will still get all the money (£22,093 so far). He may deliver a cheap Chinese watch phone that looks nothing like what he promised, or he may deliver nothing at all - you could say that people should have known better, but that doesn't make it right to take their money.
I'm considering contacting Durham trading standards about it - unfortunately, I am not sure they understand crowdfunding, or the impossibility of Mr. Gill delivering on his promise. My hope is that his name and record will ring a bell, and that they can act to freeze and return the ill-gotten gains.
I would also hope that Indiegogo stop his campaign before it finishes - but they've let it run long enough that I have my doubts over whether they will act in time.