If you’re a designer you've probably used Dribbble a number of times. It’s by far one of the largest community’s for web designers, illustrators, typographers, logo designers, graphic designers and other creative to highlight their work. It’s also a great place to connect with fellow designers. Developers have also used it successfully to find developers to work with. It’s a great place for design.
Dribbble doesn’t have any official apps, but they do offer the Dribbble API so that others can create apps. If you’re at all interested in a Dribbble app for Windows Phone you need to sign up for the beta of Threepointer for Windows Phone. It’s beautiful and does things we’ve never seen in any app for Windows Phone.