Am 24.11.2010 um 10:23 schrieb Ulrike Fischer:
Perhaps you should at first try simply to update the microtype package to the beta version: http://xetex.tk/mediawiki/index.php/Microtype_package_(preliminary_version)
Exactly this is necessary to become able to use micro-typography with XeTeX as easily as with pdfTeX. The binaries in TeX Live 2010 *are* micro-typography enabled, i.e., they have the HZ (Hermann Zapf) code built-in.
-- Greetings Pete Only useless documentation transcends the first two laws. – Arnold's Third Law of Documentation -------------------------------------------------- Subscriptions, Archive, and List information, etc.: http://tug.org/mailman/listinfo/xetex