I looked at the Just Added page on the iTMS and saw that about 2100 albums/songs were uploaded in 4 weeks. Taking about 12 songs average for each listing that totals about 25000 songs per month! They should be at around 435,000 about now. I could easily see them at 1,000,000 by this time next year. I can imagine after the Pepsi promotion, AOL gets going, (and McDonalds? International?) they will see more artists singing up and the rate added per week go up.