They should work on apt-diffs first which Redhat already does. The torrent idea may not be practical because your machine would have to be running the torrenta

They should work on apt-diffs first which Redhat already does. The torrent idea may not be practical because your machine would have to be running the torrentable-apt-get to act as a peer. I doubt many people would want to leave that running and the short 10 second connections would not be enough to sustain the swarm.