The Inq gives us some updates on Intel's Celeron Pentium M roadmap:
Intel has not yet decided what clock speeds the Celeron Pentium M Yonah 65 nanometre processors will have, but has already plumped for the numbers 410, 420, 2430, and for that matter 423 too. What happens when Intel runs out of number series? Will be go back to clock speeds. How do you measure these things on the INQ Bang for Buck scale? While there's logic inside the chips, the branding outside appears to be totally illogical, as Spock might say.
The 430, the 420 and the 410 will, we now know, be based on the Yonah 65 nanometre architecture, use a 533MHz system bus, have 1MB of L2 cache each, and support the XD bit. The 423 will share these characteristics but be an ultra low voltage version of the processor.