I believe Seagate's Kinetic had TLS features quite awhile ago: http://www.seagate.com/tech-insights/kinetic-vision-how-seag...
Both of which are reminiscent of CMU's NASD research: https://en.wikipedia.org/wiki/Network-Attached_Secure_Disks
New things that are really cool from Blockbridge:
1. Opening up WAN access to storage devices via TLS
2. Kernel drivers (for all major OS's?) allowing storage devices over the WAN
3. Re-imagining how we access block devices
Opens up the possibility for EBS-like storage across the WAN which is, simply, amazing.