> http://fabportnawak.free.fr/uae/E-UAE_0.8.29-WIP4.lha [...]
> I have a WORKING SOLUTION! Now I can run A1200 and/or A500 [...]
> on my iBook G4 using e-uae.

For performance increase with A1200 emulation, you may want to use JIT-enabled E-UAE versions.

Beta4:
https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=10174&forum=9

Beta5:
http://sourceforge.net/projects/euaeppcjit/files/0.8.29-PPCJITBETA05/E-UAE_0.8.29-PPCJITBETA05_MorphOS.zip