differentiation from existing storage
Seems that other storage company is joining the fray to have end-to-end flash strategy.
FusionIO is excellent technology (natively connect to PCIe instead via a disk controller) that pumped up high IO and superb low latency which easily beats SSD (SAS/FC/SATA base) whether on server or at Storage.
But short coming is the single point of failure unless one using software to replication synchronous to another server or card.
EMC leading the trend here definitely to address high-speed requirement and protection at the same time.... definitely lots of me-too response from many other company.