Here's some more evidence that the App Store had a really amazing holiday weekend last week. OpenFeint has announced that it saw a 184% spike in new users on Christmas Day last week, the largest single day in the service's history for new users. Over the four days around the holiday, OpenFeint reportedly added more than 1.4 million new users to the service.
Downloads were also really high, with 5 million OpenFeint-enabled games downloaded over the holiday weekend. That includes Android games, which saw 73% growth, and iOS games, which spiked by 187% over the weekend. That's a lot of new games and new players.
We've heard other evidence already that last weekend was really busy for the App Store. Apple hasn't released any stats so far (and we've got a line in to EA to try and find out if it can share any of its download figures from the weekend), but we can tell you with some certainty that last weekend saw plenty of new traffic for the App Store and its apps.