Yep check the "Poster ideas" thread in the marketing subcommittee mailing list :) should be in there.
Gotta fix the "Unleash" and the spacing between "Arduino/Raspberry Pi". What's the other errors? Coby had some improvement ideas so will give them ago too.
The jaycar counter idea:
On Fri, Jun 22, 2012 at 8:55 AM, David Tangye <[address removed]>
Lucas and I spotted a nice looking GCTS marketing brochure on the bench down the back. We are keen to know who created it. Don't bulk print it yet though: it has 2 minor errors.