According to Macfixit, Panther (Mac OS X 10.3) won't be compatible with pre-USB built-in Macs! Apple is going to be considering all machines older than 5 years obsolete. Or so Macfixit was told by an anonymous source from Apple.
Here's the report before it disappears into Macfixit's pay only portion of the website:
<http://www.apple.com/macosx/feedback>
A sidenote: Powerbook G3/333 and 400 without Firewire but with SCSI (a.k.a. Lombard model) have been known to have issues installing Mac OS X in the past or running it due to a problem on the motherboard, which if fixed can make those machines work with Mac OS X.
Here's the report before it disappears into Macfixit's pay only portion of the website:
If you think this is wrong I suggest submitting feedback toNon-USB Macs to not support Mac OS X 10.3 booting in
future builds According to sources, Panther will definitely not support
Beige G3s or PowerBook G3s without USB ports in its final release, even
though users are having limited success booting the developer preview of
Mac OS X 10.3 on these systems. A developer, speaking to us on the
condition of anonymity, said: "Any successful installations are likely
to be unstable and definitely unsupported. Future builds will not even
install on these models. I've been directly told this is the case. [...]
This is in keeping with Apple's statement that it will support its
computers for a period of five years before considering them
obsolete/vintage."
<http://www.apple.com/macosx/feedback>
A sidenote: Powerbook G3/333 and 400 without Firewire but with SCSI (a.k.a. Lombard model) have been known to have issues installing Mac OS X in the past or running it due to a problem on the motherboard, which if fixed can make those machines work with Mac OS X.