All those new iPhone and iPod touch users tracked by the official Facebook app? Yeah, the spike in traffic and new users isn’t limited just to the Facebook app. According to numbers reported by The Next Web and Business Insider, Rovio’s blockbuster iOS game Angry Birds and Tapulous’ Tap Tap Revenge 4 generated over 1 million downloads and twice the level of traffic of last year, respectively. Put simply: this year’s App Store and iOS growth showed its results on December 25th by bringing tons of new customers and downloads to apps that already managed to gain a prominent position in the Store. Or was it because of all those people that got an iPhone, iPod touch or iPad under their Christmas trees?

A little bit of both, in my opinion. Surely lots of people got an iDevice for Christmas and rushed to the App Store to buy apps; we shouldn’t ignore the fact, though, that several developers discounted their apps before the iTunes Connect shutdown (which ends tomorrow, by the way) forcing many users like me to save money for Christmas (or iTunes gift cards) and buy apps altogether right before the family dinner. Either way, those are impressive numbers.

The Next Web reports:

We asked Rovio how many times their applications were downloaded on the 25th and they gave us something to chew on:

We had a great Christmas! Being number 1 and number 2 in the paid apps for iPhone in the US is pretty much the best you can do when you have only 2 games out;-) […] The 25th was the best day for us ever with well (a lot) over a million downloads across all platforms.

Biggest day ever for Angry Birds, not bad. Also remember that the app is available on Android, and I wonder what the figures for that platform look like. As for the top downloaded free app, Tap Tap Revenge 4, BI reports that “Christmas downloads reached 45,000 per hour”.

Now, as I wrote several times in the past, just think for a second about the impact the Mac App Store will have on the Mac platform come Christmas next year. I look forward to having a post about 2 million downloads for Angry Birds for Mac on December 27, 2011.