That is something I've heard of being done. And I suppose it would be pretty viable, seeing as how there are a number of people running their computer for days/weeks/god knows how long at a time. Hmmm...since trackers for small groups of people can run on pretty, eh, crappy servers, if someone had a spare computer to hook to the internet and run as a server...hmmm...

And from what I understand, even for dynamic IP addresses, there are free services (such as no-ip), that you can sign up for that give you an http address that kick a browser back to the correct IP address.

So, would it basically involve throwing the .torrent files up on a forum or site, with an announce leading to one of those redirects (like no-ip), kicking it back to the IP of the makeshift server that's hosting the tracker?