It's time to BRING THE ACTION! "Scream & Shout" is available for purchase on Amazon, and is already climbing up the charts.
If you live in the United States, you can get a free $5 discount code and not only buy the song to yourself, but also gift it to other people: http://www.scottbrand.com/offer/amazon.
Right now the song's #26 in paid MP3s.
However, I have a feeling many of you are waiting for that iTunes release...