Colt Sub-Compact Weapon (SCW) photos
No more information on this compact carbine is available other that what I have already posted, but here is a photo taken at SHOT by Remov:

Click to expand. Photo Copyright Remigiusz Wilk (REMOV). Used with permission.
Click to expand. Photo Copyright Ken Lunde. Used with permission.
Murdoc has more photos here and here.

It’s a neat little stock. Hopefully other manufactures will improve on the concept.
I wouldn’t get my hopes up. Patents will probably keep it Colt only.
The folding stock is mentioned in another Colt patent application as to possible future configurations of the “black rifle”. (Yes, they actually used the term “black rifle”.)
Look up US Patent Application 20080301994.
Too bad that Colt’s new SCW’ folding stock will dump the magazine when the stock is fully extented, buttplate is down, and the stock is hinged forward to the left. This most likely carry state that will enable the stock to be rapidly deployed. The large button that locks the buttplate hits the ambidextrous mag release with the slightest tap. Colt’s sales force does not want to hear about it. Their reply is that “training will solve all problems!”