Flipborad mobile app has a unique style, the screen will split in two half and the lower part will rotate on the upper part.
Can any one give some hint how to develop such a thing with HTML5 for Hybrid mobile apps?
I think this might be of use
http://engineering.flipboard.com/2015/02/mobile-web/
Flipboard is using react to render layout on canvas. That's why it's so quick and gives unlimited possibilities. However it's not very accessible unless you put a lot of effort into that.