No it absolutely will not work. They have different physical sockets as well as being electrically incompatible.
MacBook/MacBook Pro/iMac intel/Mini intel = DDR2 RAM 667 MHz
iBook G4 and Most Powerbook G4 Aluminum (except the last HD / DL model) = DDR RAM 333 MHz
iBook G3 and Titanium Powerbook = PC133 RAM
Thanks
Trevor
CanadaRAM.com