Hello Xavier,
i read on your site that you have stopped supporting PUK and that you are evaluating whether or not to make it Open Source.
i am interested in porting PUK to C++. my primary interest in PUK is the method that it uses to share popup blacklists. i think that this is a very powerful feature. i'd like to broaden the way in which this information is propagated. my vision is to create a p2p-style network for sharing popup blacklists and eventually ActiveX control blacklists similar to the way razor shares spam info. i'd like to make this an Open Network accessible to all popup filtering applications and even web browsers.
if you are interested please contact me.