I'm happy Macs once again have a high-speed data port after skipping eSATA and USB 3. However, I'm confused/suspicious why they chose to combine data and video signals. Well, from Apple's perspective it's great. One less port for them to add to their notebooks. One cable to hook up to a Cinema display for video, sound, camera, USB and Firewire ports.
Is Light Peak (Thunderbolt sans video) going to exist as a standalone variant/standard? The inclusion of the video channel as a requirement for Thunderbolt is going to make it just that much more difficult for 3rd parties to produce add-in cards (hence the statements at the opening of this thread). Was the adding of video a move by Intel to help shut out third parties, sell more logic boards/processors, gently push more manufacturers towards its integrated video controllers? All of the above? Won't this place an artificial limit on the number of these ports that can be added to a machine? Right now my MP has 4 FW800 ports. If every Thunderbolt port requires video, I don't see my next MP having 4 Thunderbolt ports. Where does the TB port go an a MP? The motherboard? The video card? If the motherboard, are they routing the video card signal back out through the motherboard? Or will this be an Intel HD-fed signal? Will it cut down on the number of connections on the video card?
So many unanswered questions. The inclusion of video really muddied the waters.