The new MacBook

Hmmmm, my PowerBook G4 is still humming along nicely, running Leopard and handling whatever I throw at it, plus, although a little heavy, it's a neat 12", but at over 3 years old it's bound to cave in at some point. The new MacBook looks like it's more powerful even though it's consumer level. I'm going to have to do a bit of research, but what's the deal with no Firewire?