I don't remember the exact numbers, but it was in the magnitude of several thousand downloads per day.

My partners and I had the #1 Music app in Japan for several weeks last month (Boombox - http://tiny.cc/Lrd5g), so they are definitely interested in the iPhone. Just because they don't buy the phone in the same numbers as in the US doesn't mean they hate it. It seems like it's doing fairly well over there.