I agree that with apps that are mostly consumption, responsive design can go a long way. However, I think the biggest wins in the future will be for products th

I agree that with apps that are mostly consumption, responsive design can go a long way. However, I think the biggest wins in the future will be for products that somehow crack the problem of easy manipulation for different application domains in mobile. (We are working on that, rethinking what spreadsheets are in the touch device era)