For the sake of argument, let's assume the analysis is off by two orders of magnitude (i.e. assume half of businesses will earn less than $70K per year). Can a

For the sake of argument, let's assume the analysis is off by two orders of magnitude (i.e. assume half of businesses will earn less than $70K per year). Can anyone justify an investment in development of an iPad-only productivity software? Do you think a startup can raise capital based on such economics? My takeaway: Selling AppStore apps/ads isn't THE business model. It should be one of the channels amongst others.