Interface mobile / UI Inspiration Round Up mobile, appdesign
Enterprise back-end system by Eelco Guntlisbergen
Beautiful Wireframe Sketches for your Inspiration
Dribbble - Rdio (Retina UI) by Victor Erixon - via Design
View on Dribbble
A few months ago I worked on a side project regarding a software for managing the human resources (didn't went well for other reasons, but I decide to re-design the UI just for fun).
Landing page design for our Sales Channel SDK which we launched at UNITE, Shopify's partner conference (which you can check out here: