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The reason behind me posting a screenshot was to show that I did not have any issues updating EFI Firmware on Mountain Lion..
The EFI Boot Rom version has been updated from the original MM51.0077.B0F to MM51.0077.B10.. Not trying to con anybody, just thought would be nice to share for those running the developer preview of Mountain Lion..
Also having using Mountain Lion the minute it was released to developers, I can tell you that software updates do indeed work, apart from this EFI update I did do updates for iWork and they were successful..