Congrats on a solid idea/execution combo. I suppose we need to support UK startups as much as we do our local suppliers. Fingers crossed I think you might even manage to win over the British luddites and naysayers with this blend of old and new!
Design-wise I can only say that it matches the expectations of consumers in the demographic pretty much spot on. And I like it :)
Would be good to follow your progress so will stick to Twitter for now, but in-depth blog posts would be welcome if you find time.