I don't know about anybody else, but I'm sick and tired of hearing about the falling market share for iPhones without a mention of the reason for it (and please don't give me that "antenagate" BS).
The facts are simple:
Apple sold fewer phones this quarters BECAUSE they released iPhone 4 THREE DAYS before quarterly results were up. It stands to reason that most people are not going to lock themselves into a 2 year contract with an older model phone. In those three days they still managed to sell 1.7 million units which should be a good indicator of things to come.
The so called iPhone market share which unfortunately many people confuse with a popularity of a device, is based on a SINGLE CARRIER in US. Its like comparing apples and oranges. If you really want to know how popular something is, make sure you account for its availability.