[iBook] run OS 10.3 on new 12" G4 iBook?

[Tom R. no spam]

The specification for the current 12" G4 iBooks (1.33MHz,
scrolling trackpad, sudden motion sensor HD) is that
minimum OS is 10.4.  Has anyone ever tried to install
OS 10.3 on one?  Does it work?  Maybe not supporting all
the features like the scrolling trackpad and SMS HD which
distinguish the current model from the prior 1.2 MHz model,
but otherwise does it work?