I've recreated Dom's Sphere icon in vector format and uploaded it to the wiki.
http://wiki.spheredev.org/File:Sphere.svg (http://wiki.spheredev.org/File:Sphere.svg)
Since I don't currently have access to the vector version of the Sphere icon I modified to have thinner lines and subtle color gradients for higher resolution use, I'll probably recreate that too.
Very nice! This can come in helpful.