Sun is a stunning mobile web app by Jakob Henner for checking the weather in any global location.

It utilises Adam Whitcroft’s beautiful Climacons icon set, mashed up with Google’s (unofficial) Weather API and Yahoo! PlaceFinder API to create an elegant pinch-to-zoom user experience.

This is a perfect example of what can be created from open-sourced content. I love the retro feel of the design but the pinch menu UI is inspirational. No doubt others will “borrow” that effect.