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Memory on the Air and rMini is probably a little more constrained than on the 3rd/4th gen iPads due to the use of 64-bit code. But it shouldn't be as huge of an impact as moving to a retina display was. Hopefully as time goes on, they can optimize the memory usage of iOS 7 and 64-bit code.

I hope so too.
 
Reading this thread on my rMini.

Slick little device. Very happy with my purchase.

Lucky you. However it's possible that with your rMini you can't see the problems with yellow tint demonstrated on some of the images because if your Mini has the same issue all pictures might look equally yellowish.
 
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