Amazon MP3 Downloads Finally Get Songs

My dream has been realized. A few short months after the release of Amazon's foray into the music market, they have inked deals with Warner, EMI, Universal, and now Sony-BMG. Now they have a virtual corn-u-copia of DRM-free music for your perusal. What's the catch, you ask? Well, it seems that Amazon has also made a deal with physical stores to offer pre-paid cards to download certain items available from Amazon. No word if they'll restrict specific albums or songs for sale only in retail stores, but it will probably happen, if I know my greedy brick-and-mortar retailers correctly.