Just to be a stick in the mud, your first link, Tony, says that 3d can be transported over 1.3, but there's no standardization... so one manufacturer's 3D implementation from the player over 1.3 might not match a different manufacturer's implementation of 3D into the display device, and they'd be incompatible.
The implementation of 3D was standardized into 1.4. They even make the point of the PS3's workaround being able to work with any 1.4 display or a 1.3 display that can get upgraded through firmware to recognize the 1.4 signal. If the 1.3 display can't be flashed to work with a 1.4-compliant signal, it can still be labeled 3D since it will use that maker's propriatary implementaion over 1.3, but it won't necessarily work with other brands of 1.3 or with a 1.4.
So, let's amend it to "1.4 is necessary for standardized 3DTV."