Slide is not fishy and is (yet) unofficial since Phenom II hasn't launched yet.As for OCing headroom we have already seen 3.6-4.2Ghz OCs from non retail C1 steppings from MSI engineer over at coolaler's forum who is also a member here(toppc).
As for the launch date,i guess AMD wants a real launch and not slideware on the day they announce it.
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