If you still think the iPhone 4S is underwhelming, you may actually be alone in that opinion. Apple has just announced that the new handset racked up more than four million handsets sold in the first weekend -- and they’re just getting started.

Apple issued a press release on Monday announcing that first weekend sales of the new iPhone 4S have topped four million units, only three days after its launch on October 14. Though they don’t specifically mention it, that number most certainly includes the initial one million handsets preordered in the first 24 hours on October 7 as well.

“iPhone 4S is off to a great start with more than four million sold in its first weekend -- the most ever for a phone and more than double the iPhone 4 launch during its first three days,” said Philip Schiller, Apple’s senior vice president of Worldwide Product Marketing. “iPhone 4S is a hit with customers around the world, and together with iOS 5 and iCloud, is the best iPhone ever.”

But that’s not all -- Apple also announced that more than 25 million customers are now using iOS 5 in the first five days since its release, and more than 20 million have already signed up for Cupertino’s new iCloud service.

Not bad for an initial launch that only includes the U.S., Australia, Canada, France, Germany, Japan and the U.K., and the device is only going to pick up more momentum on October 28 when the iPhone 4S lands in 22 more countries: Austria, Belgium, Czech Republic, Denmark, Estonia, Finland, Hungary, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Mexico, Netherlands, Norway, Singapore, Slovakia, Slovenia, Spain, Sweden and Switzerland.

Apple will continue the iPhone 4S rollout to more than 70 countries by the end of the year, its fastest to date.

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