>> 1.5 weeks ago A-Eon changed the X1000's official specs from >> 1.8 GHz to 2.0 GHz.
> 3.5 weeks ago they changed it to "nominal 2.0GHz (1.8GHz standard)". > http://www.a-eon.com/x1000.html
According to Paul Gentle of Varisys, the 2.0 GHz version of the PA6T was never on general sale (if it exists at all):
"The frequency that was quoted on the PA marketing collateral was never offered as a standard part option." http://obligement.free.fr/articles_traduction/itwgentle_en.php
Edit: And now also Trevor Dickinson:
"despite the initial annoucement by PA Semi no 2.0 GHz version were ever produced." http://amigaworld.net/modules/newbb/viewtopic.php?topic_id=35671&forum=34&start=160#665677
"The P.A. Semi CPU was originally designed for up to 2Ghz operation, but the company never manufactured a 2GHz certified version, before being purchased by Apple. So the CPUs on all NEMO boards are officially rated to 1.8GHz." http://forum.hyperion-entertainment.biz/viewtopic.php?p=24961#p24961