Rock Band 2 related, Amazon is offering a free 1600MS point card with the purchase of the rhythm title. Those who purchase the standalone software will also be treated to a free points card which could be used to purchase even more "Rock."
The offer is available until October 4 but Amazon warns the promotion is only kicking around until supplies last. Make sure to take them up on the offer if you were a Rock Band 2 fence-sitter when it shipped last week. Jump to the rocking side, already! It's the fun side with long hair and leather pants.