Same here.
My iBook will indicate, depending on the setting....
"charged" or
"99%"
My PowerBook would indicate 100%, but I've never seen that number on my iBook G4. BTW - I calibrated the battery within the first week of owning the iBook, per Apple's recommendation.
That said, the battery in my iBook is the longest-lasting battery I've ever used in a laptop. It doesn't sit squarely in the battery compartment, but I try to convince myself that doesn't matter.