I never heard of Denver, Colorado based DDRdrive LLC. before, but they are part of PCI-SIG which means to me that they are a professional company with a solid engineering background. Their domain has been registered in January 2005, so not a complete newcomer either.

The DDRdrive is a solid-state HDD based on DDR memory. Unlike regular HDDs it has no moving parts and can be made VERY fast. Unlike flash memory it offers high transfer rates.This is the only picture of a prototype, there is no further information available, I emailed DDRdrive and asked a lot of questions. What we can conlude from the picture is that the DDRdrive will have a PCI-E x1 interface (2.5Gbit/s), four DDR memory slots and requires an external power supply.