A Tweet from, @PlayStation, as well as a post on the Official PSBlog, says that they will be giving away Tetris codes today (6/14), by posting them via twitter.

“Tetris on PSN goes live with free 3D update: http://bit.ly/mubnoV Stay tuned later today for a code giveaway! @EAMobile”

Watch for them here: https://twitter.com/#!/playstation