Notebook computer itself:
# Touchpad backlighting (just arround the corners and mouse button)
# Invisible right mouse button
# Dedicated media playback buttons on the notebook
# isight led arround the isight camera
# Powerswitch led
# Docking station/port replicator
# Move the airport antenna to the top of the display in the small strip of plastic at the corners
# Magnetic latch
# leds at the superdrive slot (like nintendo wii, but in white)
# leds arround every connector (like the old powerconnector on the ibook for example)
# make the whole thing (like the keys on the keyboard) out of aluminum
# reduce the margin of the screen at the top where the isight is (like the powerbook)
Remote:
# Backlighting the buttons (would require more power/bigger battery)
# A signaling led (when it sends)
# A clickweel to scroll
Power supply:
# Every cable detachable
# Better magsave connector (better grip at disconnecting)
# thicker cable to the notebook computer
Hmm what else