Surprise! Apple has another runaway hit on its hands!

While some may have grumbled that the latest iPhone didn't have a 5 at the end of its name, that doesn't seem to have stopped them from running out to get one.

Apple reports that opening weekend sales of the iPhone 4S have set a new record, selling more than 4 million units over its debut weekend. That's more than double the amount the iPhone 4 sold when it hit shelves.

Part of the credit for that, of course, is the expanded number of carriers. When the iPhone 4 hit, AT&T was the only mobile company to stock it. (Verizon became a carrier several months later.) This time, both carriers – and Sprint – had the phone on day one.

iPhone 4S sales aren't all Apple has to crow about, though. The company announced that over 25 million users have downloaded iOS 5 so far, while some 20 million users have created iCloud accounts.