Sure, Apple alleges to have flipped over a million iPhone 3Gs at this point, but what does that mean? The devil's in the details, as always; yes, true, the first one took 74 days to reach that same milestone, but it was available in less than one-twentieth the number of countries and an even smaller fraction of carriers. Hell, the very definition of "sale" is under scrutiny here, with some suggesting that Apple's making reference to the number of phones it's sold to its carrier partners, not end users -- a metric that would make sense from Cupertino's perspective since Apple's payday technically ends there.

Here's where it gets interesting -- Engadget has obtained a handful of stats regarding number ports in and out of T-Mobile USA handled by a national wholesaler. Specifically, we have data surrounding the launch of the first-gen iPhone and the iPhone 3G, and get this: of more than 1,000 ports in total, ports to AT&T represented under 40 percent of the firm's total outflow in the days surrounding the 3G's launch, versus nearly 70 percent the last time around. Furthermore, they took roughly the same number of inbound ports from AT&T during the same period, meaning that T-Mobile effectively lost no net ground due to the 3G's launch. Granted, the porting stats from a single wholesaler represent just a microcosm of the big picture, but even accounting for some loss of precision when you extrapolate that data, you're looking at a pretty significant downturn in interest from T-Mobile subscribers. We still think Apple's probably laughing all the way to the bank either way -- and iPhone 3Gs are sold out virtually everywhere right now -- but you've got to wonder if AT&T's not freaking out a little bit at the number of new subscribers it managed to entice, and whether its competitors are all breathing cautious sighs of relief at some surprisingly reasonably churn rates.

Americans, some of whom still have the nasty aftertaste in their mouths of the nightmarish number portability rollout here, must be feeling for their Japanese counterparts today. After flipping the switch this month to allow folks to take their numbers with them, it seems Softbank Mobile was the big winner -- sort of. In the process of accepting thousands of incoming applicants, their computer system buckled under the load, leaving the carrier all but paralyzed over the weekend and unable to accept sign-ups or cancellations. Fortunately, it looks like their IT folks were on the ball and everything's back to normal now (we hope).

Americans have been enjoying number portability for a while now (though not without its fair share of hiccups), but some surprising names make the list of countries that haven't yet taken the plunge; Japan, for example, just flipped the switch for fickle customers this month. It appears that next up will be our neighbors to the North, with Fido noting on their website that all major Canadian carriers will be allowing number transfers in "all metropolitan areas" no later than March 14 of next year. Regional carriers will still be on the hook to allow outbound transfers by the same date, but are given a reprieve until next September to get the inbound side working. Any Canadian readers out there anxious to make the switch? Tell us all those heart-wrenching stories in comments!

[Thanks, Frank]