During Intel’s Thunderbolt press conference this morning, while showing off some of the great new features of this technology including its Swiss Army like functionality with other types of I/O devices, it was revealed that Apple would be the only computer manufacturer with this technology until 2012. According to Intel, Thunderbolt boards will not be added to existing computers by an expansion card as Thunderbolt chips need direct access to both the systems video and PCI express architectures.
http://www.geek.com/articles/chips/thunder...-then-20110225/