Changes to PowerBooks and iMacs?

MacOSRumors posts an update claiming that the future Powerbooks will have backlit keyboards throughout the entire line.

iMacs are also supposed to get mild case revisions -- slightly smaller and lighter:

Whether the shell would actually be made of metal, or would simply be silver-backed plastics similar to previous PowerMac G4 enclosures, is not yet clear; it is definite that the changes are coming, however