Fritzing is an open-source hardware initiative that makes electronics accessible as a creative material for anyone. You can easily learn how to build a circuit for you project and also design your own PCB.

Last week, the Fritzing team announced the new release with a number of new parts, especially a number of popular microcontrollers, among which also Arduino Yún:

We have upgraded to their latest version Qt5, which brings stability and speed improvements (especially for Mac OS X users). This also enables us to port fritzing to Android, iOS, etc.

You can download Fritzing 0.9.0b at this link.