"The bots are (just like cube) 'open source' and released under the ZLib license (simulair to the BSD license I believe)."
Actually it isn't under the "zlib license". The author of cube has added a clause to forbid sublicensing to the source code (and I think the main purpose is to prevent others from copylefting their modified code with GNU GPL or something). This results the license GPL incompatiable of course and it has big difference from Zlib License or BSD License.
anyways, I will definately support you as unlike all the HL bots, this bot is completely free software
(btw, is anyone interested doing quake bot ?)