Mac OS X 10.8 Mountain Lion doesn't prevent users from installing software from vendors outside the App Store at all. Users can simply relax the security to allow this. Blaming OS X restrictions is a ...
As a developer of OSX apps. We share Odgaard's deep frustration with Apple's push to force OSX apps into the app-store. Right now it's just a warning dialog, but it's already dissuading un-savvy users ...