I've put together a quick demo of a menu idea for a mobile website or app. It only took me 20 minutes to build the entire prototype. Feel free to import and dissect.

Sliding navigation of Tab Menu

Full app prototype for IslandBreak Bahamas travel Guide - Discover & explore the islands of The Bahamas with a smart mobile travel guide. http://islandbreakapp.com/

A calendar picker concept based on Ramotion's example on Dribbble, https://dribbble.com/shots/1782092-Survey-Platform-Design

Video streaming app - simplifed streaming app that: a) Has intuitive interface to take screenshots and chat while streaming b) Relies on the Twitter stack as a chat room, increasing visibility and discoverability of comments on social networks.

A basic example of reproducing Instagram info bars behaviour. A list header floats over the list's items and remains visible at the edge of the screen until it is replaced by the next list header