Here are some interesting links you can check:
The official Angry Birds website, with screenshots and videos of the game.
From ABC News, a video clip (January, 2011) about the 14-year-old boy who designed the game Bubble Ball, a huge hit in the Apple's free apps chart. Intermediate level.
Website of the first US award ceremony for smartphone apps, "The Appys" (February, 2011), with screenshots and short descriptions of each winning app, listed by category. Challenging for Intermediate level.
