I just wish they would open the protocol up for all to view...plus the fact that this program is so much more blatent about being for the spreading of pirated material makes me nervous..bittorrent has been great partly because it makes getting the latest knoppix cd or gentoo 2004.3 soo much easier...
but in other news
http://kenosis.sourceforge.net/
is an very interesting open project (done in python) that seems to provide the same type of tracker is client system that exeem does...(I think)