Fujitsu runs Solaris 9 and 10. I've used them both on Primepower servers. As a matter of fact, in Solaris 10, There was no "Fujitsu" distribution... it was just Solaris. Also, the new APL Line (Replacing the Sun 15-25K line) is a joint venture between Sun and Fujitsu and uses the best parts of both of their high end platforms and is sold by BOTH companies.