Apple App Store hits 25 billion downloads. (Apple)

Boy, that's a lot of apps.

Apple announced this weekend that 25 billion apps - and presumably quite a few more by the time you read this - have been downloaded from its App Store.

"A billion thanks. 25 times over," the weekend image on Apple's homepage read.

Such app milestones are more and more frequent for Apple; the company hit the 15 billion download mark in July. Since launching the store in June of 2008, there are more than 500,000 apps for the iPhone and more than 100,000 for the iPad.

By comparison, Google reported in December that the Android Market has seen 10 billion app downloads. It should be noted, however, that there a number of other Android app stores, including Amazon's Android App Store, which comes preloaded on the popular Kindle Fire.

Apple's app milestone announcement comes a few days before it is expected to announce the iPad 3. Purported images of the tablet leaked this weekend on a Hong Kong-based tech blog. Check out our guide to all the iPad 3 rumors here and stay tuned for our coverage from the event in San Francisco Wednesday.