Retina graphics are already marked @2x. They could have implemented split bundles however Apple has never been one to maintain complete backwards compatibility.

Retina graphics are already marked @2x. They could have implemented split bundles however Apple has never been one to maintain complete backwards compatibility. And I do agree Garage Band is obese, same as the OSX version which I had to uninstall from my MacBook Air because it took up way to much of the very limited SSD space.