I read a lot of estimates about how many songs may have been sold in the first day, or the first week of iTMS Europe. Well, as a German resident and shopper on iTMS, I may have a hint: The invoice numbers! My first invoice was on launch day, 5:08 pm... order number 136. Later the same day, 6:42 pm: order number 2624. Yesterday I bought again a few songs. Order number: 449683 (!!) Since those are the orders, and maybe someone buys just one song, and another buys maybe one album, we may average on 6 songs per order. This would mean that Apple sold about 500,000 *6 (estimate) songs. How would we like that? 3 Million songs sold in the starting week of iTunes Europe??