Unfortunately vmem does not have a differentiated edge. Once, they did, being the fastest fully fault tolerant storage array on the market. Now, IBM and Fusion/sandisk and HDS have them beat. As a customer I can not think of why I would buy vmem over all of the alternatives that offer comparable latency, IOPs, and datacenter footprint. And if it is my tier 0 and 1 that I am buying for the trust me, I'd buy from a big vendor. Seriously, the Fusion ION or whatever it is called has lower latency. Lame. 3par too. If only there was a real stock play.
Only option is their IP. Perhaps they hold some key patents around asic centric flash interfacing. I do think the market will move away from SSDs cus ssds are stupid. Maybe vmem has valuable ip around that.