From Engadget.

We’re still not about say the e-book reader industry has branched out beyond the infancy stage, but one of its flagship products certainly has reason to celebrate. Amazon has announced it’s hit some pretty big milestones with the Kindle. The two bullet points it’s currently touting loudest is that the reader has become “the most gifted item” in the company’s history — quite an achievement given the size of the online retailer, but what’s missing here is any quantitative sales data to give us even a ballpark of the number of units sold. The other big news is that on Christmas Day (we’re guessing not Christmas Eve, else the press release surely would’ve mentioned it, too), e-book sales actually outsold physical books. Those brand new Kindle owners needed something to read, right? It’ll be interesting to see if that momentum is maintained through next year, especially with some major publishers starting to show some teeth with digital delays.

The Kindle bits were all part of Amazon’s annual post-holiday statistical breakdown, so in case you’re wondering, besides Kindle, the company is claiming its other top-selling electronics were the 8GB iPod Touch and Garmin nuvi260W, and in the wireless department the honor goes to Nokia’s unlocked 5800 XpressMusic, Plantronic’s 510 Bluetooth headset, and AT&T’s edition of the BlackBerry Bold 9700.