Yes and no. The main issue we see with 10Gbps is networking topology. We don't want to roll out a star type networking which has a big single point of failure. The whole point of moving to distributed block storage is to eliminate this. Its difficult to build a grid layout with 10Gbps without going into silly money. With Infiniband it supports very well in grid configuration which is ideal for a distributed storage network. As a technology it has at least a few years left simply because it can offer 40Gbps and Ethernet won't be there at a reasonable cost for a while.