Games: Temple Run 2, Candy Crush Saga (became really popular overnight..), SongPop free popcap games...?
Apps: Flipboard, Songza, Tango for WP8 (where the **** did it go?), Adobe Reader, GetGlue official app
I was a big fan of Flipboard on IOS and Android before I had the chance to check out a news reader I actually think is a perfect fit for WP8. I'm hoping Feedly would show up on WP8. Its smooth and fluid. Not to mention feature rich. It also uses a lot of gestures to navigate. I think it would be a good fit.