Best Buy is offering a free bonus with every purchase of a $9.99 - $13.99 album from an Interscope label act like Black Eyed Peas, 50 Cent, Timbaland and others. The only problem is that what their offering in exchange for the purchase - a download of Twitter utility Tweetdeck - is already essentially available for free. 

To be fair to Interescope, according to TechCrunch, this is a special custom version of Tweetdeck that comes preloaded with the Twitter feeds of a bunch of Interscope acts that you may or may not care about hearing from. If you want to save the $9.99 and up and spare yourself the pointless tweets, you can download a free no strings attached version of Tweetdeck here or the free Tweetdeck iPhone app here.