Most notable of what I've read recently is the lack of iPhones here in the US and in Europe. With all of the news and rumors about a 3G iPhone coming out in the next six weeks, it's no wonder that Apple is trying to eliminate its inventory of the first generation iPhone as quickly as possible. I don't think Apple thought it would happen as fast as it did though.
Look for the next generation iPhone to be released sometime around the third week of June.
Erik