I followed up with some of the principals involved in the IEEE P1901 and ITU-T G.9960 (G.hn) work last week to clarify a few points. These requests followed a briefing with the folks with MoCA, who have grievances about the ITU process and the decision that was reached in December to approve the foundation document. Here are some of the primary issues that the MoCA folks wanted to air:
1. They note that this is still an uncompleted specification, noting that no MAC agreement has been reached (and contesting the notion that the PHY is 100% solid). For the record, the ITU and the HomeGrid Forum have made note of the need to finalize the MAC specification. This could be accomplished with a companion spec for a media access controller that could be implemented in firmware is expected to be complete as early as September 2009. Thanks to Rick Merritt at The EE Times for that good explanation.
2. The MoCA folks feel that they were largely shut out of negotations in the ITU process, arguing that they had put forth a recommendation to make the ITU backward-compatible to MoCA. Contacts at DS2 and CopperGate note that the ITU specification is not backward-compatible with any current "no-new-wires" standard, and trying to achieve this and please everyone would have resulted in a much slower process. They indicate that it will be up to individual semiconductor companies to build in backwards compatibility.

Were their politics involved in this process? Undoubtedly. I do understand the sense of urgency under which both the IEEE and ITU have been working. It would appear that standardizing on a single powerline solution was really the critical component of the standards process, as this standards mess has held up market development for far too many years. Although MoCA supporters may not like feeling shut out of the development process, one explanation I got from someone privy to the ITU process was simple but probably a critical factor. He indicates that - for the European market in particular - coax solutions will not have the same critical role to play as powerline. Therefore, a solution like MoCA - which is well suited to the U.S. cable industry - simply wasn't going to be considered in the final process.