Comment Re:Entitlement (Score 5, Informative) 325
And how do you figure they are wasting space? Ever examined the content of their apps?
It's all about distribution issues. One-size-fits-all ends up requiring App developers to ship with 1x, 2x and now 3x bitmaps for the artwork. This does inflate apps, just as having multiple interface files specialization for multiple device sizes (~iphone & ~ipad xib files, or the bloating AutoLayout + Size Classes super storyboards). It's inevitable.
But Apple is also taking steps towards reduced bitmap footprints.
As of iOS 7, there has been FAR fewer bitmaps in the core OS in favour of lighter (visually and storage-wise) user interfaces.
With the introduction of PDF-based image assets that auto-compiles all the required resolutions, developers are now in a position to gradually rid themselves of the burden of maintaining multiple bitmaps (those where getting quite a hassle in large projects where every image was a trio of increasing sized bitmaps).
In OS X, PDF images are rendered natively and bypass the asset compiler. In iOS 8, the path is paved for abandoning bitmaps altogether.
So, no, Apple is not making their OS fatter on purpose. It's the cost of added features and backward compatibility that does that.