I recently did my regular dabble with Linux - this time on my 1.33 12" iBook and my 667 Powerbook and as before, after a brief flirtation, went back to Mac OS (Tiger on iBook and OS9 on the PB). Between them I tried Lubuntu, MintPPC and Debian 7/8 but even Debian 7 with Openbox, which only uses about 60Mb of memory, was still sluggish compared with a fully optimised Tiger. And bear in mind Tiger is a full featured desktop environment whereas Openbox is a blank screen with a right click only menu. Yes, you can run a contemporary web browser (but on OS X we have TFF too) apart from that I see no advantage. So, my question is, does anybody run Linux on an IBook or Powerbook and see a performance improvement over OS X?