Logo similarities

Just noticed some similarities in project logos…

http://en.wikipedia.org/wiki/RISC_OS

and

http://en.wikipedia.org/wiki/Horde_%28software%29

Of course, ours looks better.

For what it is worth, RISC OS’s cog dates from 2000/2001 as it is mentioned in Foundation RISC User issue 7.
The Horde logo AI/EPS files say “%%CreationDate: (3/15/2002) (11:37 AM)”. Actual dates unknown.