Indeed, my advice for any developer who wants to do their own start-up is to - once you have reached a good standard - forget honing your development skills and

Indeed, my advice for any developer who wants to do their own start-up is to - once you have reached a good standard - forget honing your development skills and start learning to design. I don't aspire to ever be a really good designer, but I'm doing exactly this right now. It's become clear to me over the last year that improving the design of my apps is going to do more to boost sales than any new features I might add.