Fritzing alpha version available for download
Just in case you don't know what it is, it is a tool that allows users to document their Arduino and other electronic-based prototypes, and to create a PCB layout for manufacturing.
So a new alpha version is available for download for Windows, Mac OS X and Linux at http://fritzing.org/download

If you have time please download it and test it and let's offer them valuable feedback to make the full version possible.