On 6/14/07 3:36 PM, Michael Winter wrote: > So as long as Apple is supporting PPC, I don't know > what the hardware limitation would be in the G4 systems that would > necessitate it being dropped but not the G5. cache/bus speed? RAM limitations on portables? It's possible they could quietly be unsupported by Apple just because Apple doesn't want to/need to deal with questions like, "Why won't ABC.com play correctly on my G4 Powerbook? It's a 1.0GHz maxxed out with 1GB RAM, and it stutters and drops out. Why?" (true story/specs, by the way). Even though the OS may run, technically, if the specs on the computer are out of date with regards to "common" activities -- watching video on the Net, or streaming to AppleTV, or lack of USB2 making their iPod experience too slow -- they may simply drop the "class" from support rather than spend a lot of Genius Bar time with those kinds of questions.