This is a current official osFree logo, created by Alex Kramer (Germany).

This is the original osFree logo, created by Cristiano Guadagnino (Italy). It is better reflects the idea of the “osFree” name. osFree is named after OS/3, being the OS/2 successor. Also, because “three” sounds similar to “free”, and it is a free software, we chose the name “osFree”. So, the original osFree logo better reflects the double meaning of the word play free/three. “Three” and “Free” are just merged on the picture.