Interesting how they separate the app being promoted from the phone. it looks almost surreal. advertisement mimics the style of the app made, too.
[Freebie PSD] Free Awesome Flat Ui Kit
Free awesome flat ui kit
Amazing Mobile App UI Designs with Ultimate UX | Inspiration | Graphic Design Junction
Inspiration Mobile #12 : Interfaces & éléments
Love the white against off white background- interesting contrast. Also really like the subtle change in opacity for the bottom half of the line graph. Activity by Piotr Kwiatkowski, via Behance #infographics
D-D Play - App Design | Abduzeedo Design Inspiration