I know the App Store does themed features based around events. For example they recently had the Chinese New Year theme and Valentines Day. Can anyone recall what other themes they have done in the past? Thanks
For event featuring, they also have done stuff based on Halloween and Christmas, and do some featuring around major sporting tournaments such as the soccer World Cup and the Superbowl. They also did their "Red" charity feature late last year. I think they may have also done something in the US around the last Presidential election. Not sure about 4th of July.
They're currently running an "Aliens Attack" feature (which my game Alien Star Menace is in! ). They've also got a "Thrillers" section, and I recall a Robots section in the past. It looks like they just kinda make up the non-holiday ones as they go.