Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5)
Apple is one of the only electronic companies that release stuff in the us first. I know I don't speak for everyone but I don't buy stuff released in japan first before the us launch.
Last year the iPad 1 only came out in Portugal in September. I don't feel sorry for getting one from the US long before that.