With Mountain Lion, the previously banned easter eggs are back. Steve Jobs did not like them and so he banned the use of Easter Eggs in every software product made by Apple. But now, they appear to be back. When you download any App from the Mac App Store and go to your Applications folder quickly, you will notice the timestamp on the App to be “Jan 24th, 1984”. If you don’t know, it was on that day that Apple launched the very first Macintosh.
After the App downloads completely, the timestamp is changed and resumed back to normal.
Here is Steve Jobs launching the Macintosh –