In addition to the usual performance enhancements, the game now allows you to resign even if it is your opponent's turn. Hey, sometimes the tiles just don't pop up in your favor. And when the game comes down to the last few letters and you have nothing left but a "Q" a "J" and an "z," why prolong the agony?. All you need to do is check under the "more" menu under "Their Move".
The update should be awaiting you in the Google Play Store. Go pick it up now.
source: WordsWithFriends via AndroidCentral