Here is one rationale for the change:
Now, Apple is backtracking, and it?s not surprising?espeicially after that Epic Citadel demonstration created with Unreal Engine. Epic Citadel is a cross-platform 3D game engine which, before this change, would be technically prohibited by the iOS developer license.
Epic Citadel, which does look to be fantastic, was illegal under Apple's previous EULA. Considering how proud Apple is of Epic Citadel, they had to change their EULA when they realized that they were holding back the platform.
Ironic how the demo that all the Apple zealots were freaking out about was actually illegal!
