The BBC (http://news.bbc.co.uk/1/hi/technology/6544919.stm) is reporting a development which will boost P2P speeds.
"The speed of current services, like BitTorrent, is limited by the number of people sharing a specific file, such as a movie or song.
Similarity-Enhanced Transfer (SET) works by spotting chunks of identical data in files that are an exact or near match to the one needed.
Using SET the researchers have seen speed increases of up to 500%."
Sweet :)
Sounds like a good idea. Lets hope it works well on a wide scale.