Valve has several big competitors in the PC market. Several hugely successful games are not available on Steam.
I'm not sure it's possible to create a hugely successful iPhone app that isn't on the App Store. Apple has a monopoly and is using it to squeeze excessive fees from developers.
I'm not sure it's possible to create a hugely successful iPhone app that isn't on the App Store. Apple has a monopoly and is using it to squeeze excessive fees from developers.