Re: iphone/ipod layout fixes
It does a better job of making all or most of the number pad visible within the screen, minimizing the scrolling you have to do. When you first 'adjusted' to accommodate the iPhone a while back, it worked well for a short time, but then lost that capability. This improves it again.
Agreed 100%! The puzzle selector dropdown is also a great improvement.
I only have a 3GS so I'm afraid I can't comment on how it looks with Retina displays.