Right from Apple.com, here's the news:"Apple today announced that iTunes is now the number two music retailer in the US, trailing only Wal-Mart. The iTunes Store — now with over 50 million customers — has sold over four billion songs. In fact, it sold an incredible 20 million songs on Christmas Day 2007 alone. And with over six million songs from all of the major and thousands of independent labels, it offers the world’s largest music catalog."
Do I have to add anything else? After climbing above Best Buy and Target, the iTunes Music Store will probably go higher than Wal-Mart later this year, if the current growth rate is maintained. Well, I guess we'll look back in late 2008 and say "it seems we were right, now Apple's first music retailer in the US"... or not?