If Apple did that, they would most likely be small updates. I would predict
1.33GHz G4 to 1.5 GHz G4, high end with 512 RAM standard and 64MB video card. Maybe this difference would allow the low end iBook to be a couple hundred dollars cheaper?
But then again, an updated iBook, seems like a too small announcement to make with a room full of pros and developers. In that case, Steve would talk about the recently updated PowerMacs. Unless they gave an excuse that the iBook was great for software development and the pros, which we know even the PowerBook hardly reaches that "pro" level anymore. Apple's pro apps are demanding G5's and 1GB of RAM or more each...
Someone said an iSight 2. I like that idea. I think the current iSight is great but still too expensive.
And A/V Airport Express seems like a more technological product to brag about at a keynote. This would eventually lead to newer products... iPod AV