I think they're talking about the computer when they say "the G5"), for the processor itself has 64 bit FPU and Integer Units, 128 bit AltiVec, and supports 128 bits though the system bus; that makes it a 128 bit processor. If they are talking about the processor, then they're emphasizing the FPU and Interger units (much like when the G4 came out and all we heard about was "Velocity Engine" (aka AltiVec)).

What I like seeing about 8 gigs of RAM on a computer is that a). somebody's gonna find a use for it and sooner than any of us think, Photoshop already comes damn close and b). it might encourage the price of RAM to go down a bit.

Mostly though, it allows a "power user" to really trick out the computer while not forcing the soccer moms out there to pay even more for the computer.