MacUser UK has “confirmed” that Apple will introduce updated portables on October 16. The site speculates that the iBook will get a boost to a 600MHz while the PowerBook G4 will be ugraded to 667MHz. Other details are less certain, although it’s rumored that the CD-ROM iBook may be dropped due to low demand, and that the PowerBook G4’s DVD-ROM drive will be replaced by a CD-RW. The October 16 announcement date is in line with what we at MacMinute have been hearing.