I have been trying to figure this out and I do believe I understand HDMI spec 1.0 thru 1.4
I think I get it?
There are five connector types for HDMI: Type A,B,C,D and E
Type A - is a 19pin that measures 13.9mm X 4.45mm will transmit 25 to 340Mhz
Type B - is a 29 pin connector it measures 21.2mm X 4.45mm and carries double the bandwidth - this HDMI connector has not hit markets yet. Its capacity is double the capacity of Type A or C. Type B HDMI connector will transfer from 25 to 680Mhz pixel stream per/s equal to a 3840 X 2400 pixel image it is compatible with "duel-link DVI" found on most computer video cards since 2004/2005
Type C - is called the mini connector and again it is a 19 pin connector. It measures 10.42 X 2.42 but capacity is yet to be determined I think (can be adapted to include LAN connection @ pin 14)
Type D - is a called a micro connector it is a 19 pin connector and will include LAN connection at pin 14. It measures 2.8mm X 6.4mm (about the size of a micro USB. Type D connector is defined as used in the HDMI spec. you will see the Type D micro used in mobile electronics
Type E - will be an automotive Connection System as defined in HDMI 1.4 specification.
It appears the pin #14 has been a reserved pin all along. Now that the Ethernet connection is finally appeared in the 1.4 spec @ pin 14 we could expect to find Type A,B,C,D and E connectors made available in your HDMI cable spec from 1.0 thru 1.3c and now to include 1.4 spec with LAN. (Of course it will probably be called the 1.4 spec with Type A, B, C, D or E connector) That was the part that turned everything upside down for me and it was understanding connector types that finally put this all together.
I know the info here about connector types is correct but I hope my last paragraph is as well. I do believe it is. I suppose demand for Ethernet will determine when and if...
It looks like I'm set until I buy an OLED Tv or a new Canon 5D.