Interesting features/upgrades on new PowerBooks (15 and 17), besides the
obvious like higher res, longer battery life, and brighter display:

• 8x SuperDrive ( DVD+R DL/DVD±RW/CD-RW) is now
  standard
• 17″ comes with 120GB hard drive! Wow, that is nice!
• the mini-stereo input (mic) and output (headphone) ports are now
  mini-optical ports, just like the port in the Airport Express, this is very cool!
• backlit keyboard now standard, this might not be new though, but my 15PB
  doesn’t have that
• 5.5 hr of battery life is very impressive
• S-Video to composite adaptor included now

It’s disappointing to see the 12″ PowerBook still has a 256MB RAM
module on-board, so maximum without soldering is still 1.25GB.