>> which can't be replicated endlessly with very low marginal costs. Sure it sounds easier to build an app store, but is it really any simpler than building ra

>> which can't be replicated endlessly with very low marginal costs. Sure it sounds easier to build an app store, but is it really any simpler than building railroads? One might think of app store as being just software but it's way more than that, it's an entire ecosystem built by a huge company made of the best talent in the world. Look at big companies like Microsoft and Blackberry who have given up on their smartphone ecosystem (and respective app stores). It's definitely very competitive and cannot be replicated endlessly with very low marginal costs.