EPP is not a JEDEC endorsed specification and should not be misconstrued in the industry as such. I do encourage the sponsors of the concept, or any other companies wishing to properly document higher DDR2 speed grades, to develop a truly open specification by submitting a proposal to the JEDEC committee and to the SPD Task Group and following the well established guidelines by which open standards are developed.
If EPP proves to be useful at all, it would be interesting to see if JEDEC will allow it as an official spec. Since EPP is geared for overclocking only, NVIDIA may have a lot of convincing to do. Head on over to the full posting at DailyTech.