Originally Posted by R_1
That Thunderbolt is provided by additional ASIC, not incorporated in the chipset. The basic problem with Thunderbolt implementation is it's price - $25 per chip. Intel is the sole provider of the Thunderbolt controller. It is not licensed to anyone.
What I've heard about additional features is that mobo vendor tend to like them , when their price is $1-$3, $5 max. Thunderbolt is much pricey than $5, so nobody likes it. It is that simple.
That, and Thunderbolt peripherals are so sparse right now and crazy expensive. Heck, there aren't even any Thunderbolt docks out yet afaik (I'd like to have Gigabit Ethernet for my Macbook Air).
Seems like AMD users aren't going to have the luxury of Thunderbolt unless mobo manufacturers incorporate it, at a premium of course due to the reasons that R_1 stated, or they get an add-in card to add that functionality.