You're suggesting that Apple would turn off the means to run apps developers depend on to work? The same developers who create apps for this 'locked-down' App S

You're suggesting that Apple would turn off the means to run apps developers depend on to work? The same developers who create apps for this 'locked-down' App Store? It may come to pass that a version of Mac OS X will ship with an option to only allow apps from the App Store. It would be a great thing to enable on less-technical-people's computers. However, making it compulsory would chase away the very users their platform depends on for success.