Chris wrote: "Now EMC is taking its block access CLARiiON array technology and adding in the Celerra filer/iSCSI functionality to create its own single unified storage line."
There is the Celerra NAS head and the Celerra Unified Storage Platform. http://www.emc.com/collateral/hardware/comparison/emc-celerra-systems.htm
Celerra USP supports (and has supported) both block and file system access. Nothing new in that. Celerra USP is a NAS head integrated with a CX4. EMC combining NAS and SAN isn't the news here. Been there, done that.