Whats the point?
The established vendors have already moved into this market (or in the process). I have an EMC hybrid array, which cost me less than any of the arrays from the named start-ups, but it also comes with a guarantee the manufacturer will still be around in 3 years and the box still supported.
The only way I would purchase from a start-up is
a) if they offered something cutting edge which I could not get from an established vendor
b) they came in at such a ridiculously low price, that I could afford to buy 2 units
There is the argument that they are simply developing the technology and waiting to be brought out, but as El Reg points out, that ship has sailed.