It appears that way.
Engadget is reporting that variable pricing has gone into effect over at iTunes, and that its Top 10 songs, which are unsurprisingly similar to Amazon's, are more expensive than its competitors.
Noty sure if Jobsy poo was forced to charge more for music, or if Apple is greedy, or if amazon can just fuck up shit with prices.
But whatever it is, I like it. Keep the prices coming down boys.