Side Panel Menu
Source: Android//UI Patterns
This approach to navigation is a new trend originating from the Facebook app. Upon clicking on an icon, the current page automatically slides to the right, revealing a menu located vertically on the left side. Other apps that now use this approach is Spotify, Evernote, and Google Plus.
Expanding Circular Menu
Currently only in the Path mobile app, this menu has an elegant design. It is located where thumbs can easily access it, and upon tap, the animation of menu items expanding outward is not only pleasing to look at, but the red plus sign also rotates to be come a red ‘X’ – immediately informing the user that tapping it again would close the menu.
Scroll Bar Information
Source: The Next Web
Just a neat little feature from Path – while you are scrolling, a small tool-tip hovers beside the scroll bar so that users will know at a glance, where in the timeline they are currently viewing.
Lehtimäki, J. (2012, June 10). Emerging UI pattern – Side navigation. Retrieved from http://www.androiduipatterns.com/2012/06/emerging-ui-pattern-side-navigation.html .