Telcogram iOS app This navigation looks really different and like it.
Android UI Patterns: Emerging UI Pattern - Side Navigation
We Pursue Excellence
Coral Reference Guide - iPhone App Submenu
Would make for cool navigation
ToolTip design in PSD by Andrey Maxim on Dribbble.com
Dribbble - Cubic Navigation Bar by Nick Zhukov
Enjoying the navigation and opacity used on Goliath Sportswear's website