Qbertino writes "I'm proud owner of an older 12" G4 iBook (1,0 Ghz) from a few years ago, the one many geeks have and liked to use because of it's price/performance ratio for a subnotebook. Many people I met use it to run Debian Linux PPC or some other OSS operating system and do their programming on it. However I mostly do web developement where the OS hardly matter and I've come to like the benefits of running the native OS and the neat and frictionless hardware integration that comes with it. I do quite a lot of Flash developement aswell and need to be able to use the official Flash IDE from Adobe. The downside is that the desktop bogs down the systems performance which I'd like to use for other things by running a replacement of the Aqua Workplace Shell & desktop enviroment. There are quite a few wps replacements for windows — I've use Litestep with Windows 2000 — but I'm looking for one for OS X. What lightweigth WPS replacements are there for OS X and what other strategies are there to take some weight off an OS X desktop?"