TV over internet by joost.com
The program is based on P2PTV technology and is expected to deliver (relaying) near-TV resolution images. It turns a PC into an instant on-demand TV without any need for additional set top box. News updates, discussion forums, show ratings, and multi-user chat sessions (often linked to the active stream/channel) are made possible through the use of semi-transparent widget overlays.
sounds like a step forward in IPTV revolution to me