Unfortunately, no. But someone will probably figure out how to produce a PCIe x8 card with Mini DisplayPort input and two thunderbolt outputs soon.
No. Pragmatically Thunderbolt requires DisplayPort signals that can't be user disconnected on the motherboard.
Intel has always positioned that Thunderbolt was not coming to PCI-e cards.
A some point the supply of TB controller chips may get loose enough that some Chinese chop-shop whips together some uncertified hack. But it probably won't need a DP input. It would like be some sort of renegade 'PCI-e data only' hack. Right now though Intel controls distribution of TB controllers and if try to distribute volume uncertified solutions they just cut off your supply of the controllers.
Some vendor have build Rube Goldberg kludges like this but none of them have passed certification to my knowledge.
I can see the use in Thunderbolt for people who purchased a bunch of Thunderbolt accessories... for example, if one has a Mac Pro and an iMac with a Pegasus RAID unit, and wanted to move the Pegasus to the Mac Pro.
Otherwise, there is no point in using a slower Thunderbolt interface with a Mac Pro that can use faster connections like mini-SAS cables. USB 3.0 on both my MacBook Pro and Mac Pro ensured that I won't be using Thunderbolt for the foreseeable future. I do wonder if TB will ever catch on.
Why do we need/want thunderbolt on a Mac Pro again?
I'm beginning to think this thunderbolt on a Mac Pro is more of a Me-Too thing than anything else.
Why do we need/want thunderbolt on a Mac Pro again?
I'm beginning to think this thunderbolt on a Mac Pro is more of a Me-Too thing than anything else.
Apple Thunderbolt Displays?
I'm with you to a degree here.
The way I see it, it's useful if one has spent money on TB devices