A new reward up at the My Coke Rewards site. Spend 25 MCR points to get a $2 Amazon MP3 credit. Limit one redemption per MCR account and you can only use one Amazon MP3 credit code per Amazon account as well.
Don't forget to play the Powerade Instant Win game. You can win up to three times --- I've twice won 3 MCR points --- and you can do so by saving your points by clicking through the rules on the instant win game and requesting codes. I do this 5x in a row and then play all my games in succession. You get 5 free instant win games per day using this method.