Mac OS X 10.5 to Include BitTorrent client and a sharing-reward system?

Mac OS X 10.5 to Include BitTorrent client and a sharing-reward system?: "According to Mac OS Rumors, Mac OS X 10.5 'Leopard' will include a system-level 'BitTorrent' filesharing client that can be user-customized to 'donate' upstream Internet bandwidth for things like Software Update, in return for rewards such as iTunes content."