As Google Reader is all about reading, we thought we should give our users a chance to maximize their screen space whenever possible... thus fullscreen mode was born. You can toggle the fullscreen mode through the 'f' key. Additionally, you can use 'shift + u' to show and hide the navigation panel so you can easily change what you're reading without leaving fullscreen mode.
Eagle-eyed viewers might have also noticed we've added a new category to the trends page: clicked trends - now you can see which sources you click on the most.
And finally, something many of you have asked for before...we now show you your lifetime read item count. That's right. Every. Single.* Item.**
*Only things you've scrolled by, or clicked on - doesn't count mark all as read.
**Okay, that's not quite accurate - once you hit around 300K (which we know some of you are already over) we stop counting for performance reasons. Consider that "beating the game".