I've been looking into this for a bit, but Lightroom doesn't support 10bit colour just now, however photoshop does.
Only other catch is needing a quadro GPU to drive this since NVIDIA consumer cards doesn't have the ability (at least aren't allowed via drivers) to output over Displayport at 10bit colour.
Anyone else given this a go? Seems like it would be worth it since it would more accurately be able to represent print colour.
Canon EOS 5DmkII + BG-E6 + Canon EOS 40D + BG-E2N + Canon EOS 33
Canon 17-40 F/4L
USM + Canon 24-70 F/2.8L
USM + Canon 28mm F/1.8 USM + Canon 70-200 F/2.8L
USM IS + Canon 85mm F/1.8 USM
Canon Speedlite 580EX II + Canon Speedlite 540EZ + 2 x Nikon SB-80DX
Cactus V2s Wireless Trigger - 5 x
Cactus V2s Wireless Reciever