Hi, I think the new PowerBook G5 will be relase near September 2005 or perhaps during the summer 2005. The curent version of PowerBook was not completely supported by gnu/linux :
No 3D accel, No DVI output, No Suspend mode, No Airport Extreme (I found this : http://sourceforge.net/projects/linux-bcom4301/). Then, I don't know if the PowerBook G5 will be supported better than PowerBook G4 ... Bye, Pascal