next year's PowerBook.
I don't care about 1GHz G4. I want Firewire 2, 802.11g airport, bluetooth, brighter/higher contrast screen, cooler running G4 (<10 Watts) quieter fans, DVD-RW, stronger Titanium coating, Radeon Mobility 9000 and to a lesser degree DDR-RAM. Anything faster than 667 MHz (one I just sold) with the most of the above features will do me just fine.
Here is what my crystal ball tells me, remember you heard it here first.
Realistically, expect 933MHz or 1GHz G4, same airport, no bluetooth, same screen, hotter G4, no DVD-RW (at least right away), same casing, maybe Apple will throw in Firewire 2 as a bonus, MAYBE. I'm also tempted to say that you'll see Mobility 9000, definite no DDR-RAM.
Aug/Sept 03:
PBG4 1.2-1.4 GHz with Firewire 2, USB 2.0 802.11g, bluetooth, upgraded display, modified casing, DVD-RW, Mobility 9500 or something and definitely no DDR-RAM, expect faster MPX bus however.
Mar. 04:
PBG4 using G4+ 1.8-2.0 GHz plus DDR-RAM for sure. If casing not dramatically changed in '04, it will this time. 7 hrs. battery life.
Expect 64bit PB using 970 mobile derivatives in 2005 running MacOS XI.