@Another User said:
But yes - Thunderbolt has got to be a good thing, although at the moment it's all daisy chaining and no hubs. A far as I know.
Obviously when Thunderbolt becomes available to the general PC building population (later this year) it will have a greater chance of becoming important. However, as it has to be built in to the motherboard, it will take a number of years before it becomes universal, even amongst Mac users. it is also an Intel protocol, so it remains to be seen how that will work with motherboards from other manufacturers. personally I suspect that by the time it becomes the norm better things may be available, such as the original specification that was named Light Peak.
Regarding VSL using TB instead of Ethernet, I doubt that this will happen any time soon, if at all, because TB is not available to the vast majority of users.
DG