HD Wallpaper: Crab on Zumaia beaches
The HD picture taken by Danel is available free under CC By-Sa license and optimized for lockscreen phones and desktop backgrounds.
Widescreen Desktop / Macbook: 2560x1600 (fits on: 1920x1200, 1680x1050, 1440x900)
Samsung Galaxy Tab & iPad: 2048x1536 (compatible with almost all tablets)
HTC, Samsung Galaxy & iPhone: 1080x1920 (compatible with many smartphones)