Sun is really courting the HP guys these days, & if it means that they'll have to port Solaris 10 to Itanium in order to win over their affection, it seems like they may in fact be willing to do so...

"Solaris marketing director Chris Ratcliffe told The Register that 'yes', it is possible. Speaking in the wake of McNealy's letter, Ratcliffe said Sun would be 'happy' to discuss porting Solaris to Itanic. Radcliffe noted a port of Solaris 10 for IBM's PowerPC architecture is in the works as a result of Sun's Open Solaris program."