Correo - a new mail client for OS X
http://nkreeger.com/correo/index.html
"Introducing Correo, a new open-source mail client for Mac OS X. Correo blends technology from two popular Mozilla projects, Camino and Thunderbird, to create a polished native Macintosh application."
// hicksdesign :: Thunderbird
http://www.hicksdesign.co.uk/journal/2004/04/thunderbird
"Following on from the branding of Firefox, comes the new logo for Mozilla’s email client, Thunderbird."