Your twelve-inch friend gets a third-party port replicator.

The new 12″ BookEndz from Photo Control allows you to connect a 12″ Powerbook quickly to ethernet, video, USB, firewire, audio and power.
Instead of juggling all those cables and plugging in those 7+ cables every time you put your Powerbook on your desk, why not just clamp it into one device that does that job for you?
(You can still purchase a BookEndz for your white iBook or your TiBook as well.)