In the mobile theme, on iPhone 4, the icons for the sites offered to migrate to in the flag menu (off topic) are skewed. They are stretched vertically and squeezed horizontally. (I am on an iPhone now, hence no screenshot.)
A fix for this will go out with the next build.
Also, you can take a screenshot on an iPhone (at least an iPhone 4) by holding the lock button and then pressing the home button.