FUD Zilla claims Intel will launch its 32nm dual-core Clarkdale processors on January 3rd:
They plan to launch Core i5 6xx series, all clocked above 3GHz, starting with 3.2GHz with Core i5 650 and finishing up with Core i5 670 clocked at 3.46GHz. Don’t forget that they all support Intel's Turbo feature that will get them overclock one or both cores and 3.46GHz CPU will easily go over 3.5GHz if not even close to 4GHz on some tasks.
Additionally, the site also heard that the Intel Atom N450 will be released on the same day.
Since many manufacturers are eager to show their N450 single-core netbook designs, Intel simply wants to announce it as it can be expected that the systems based on this CPU should be available at launch or shortly after.