*EDIT* Meant to reply to Bob's post on OWC instead of this one! */EDIT*
I thought it was intriguing as well. Mini-SAS SAN? 48Gbs? Wow. I am still curious how it will implement in the real world, at their booth I think it was running MetaSAN or SanMP. I asked if it could run XSAN and they said "Maybe, we got that working in the lab with some hacks."
The link for those interested:
http://eshop.macsales.com/shop/storage/Enterprise/jupiter/mini-SAS
Similarly interesting was ExaSan's PCIE SAN, at speeds up to 20Gbs. Again I'm not sure how it will work in the real world, and both I think currently suffer from short cable lengths, but that will all change with PCIE 3.0 soon.
I think the industry is saying that Thunderbolt is not fast enough ;)