Performance and other improvements
Some really nice browser performance optimizations have just been rolled out (this applies to all currently implemented games), so your browser should now consume significantly less resources and feel more responsive while you're in the game.
Several other improvements have been rolled out along with the general performance optimizations too.
E.g. site interface should now work better on mobile devices (in particular, scrolling should feel much more responsive now - site really works much better on the iPad now!).
Also, few improvements have been made to the Energy Empire game interface, e.g. it is now possible to preview cards/achievements in full size (with text being easily readable) when it's not your turn (or when it is, but you can't purchase the card / claim the achievement).