I don't know how many of you have actually built some of the stuff from ports like scummvm and SDL but I thought I should just mention something.
When you build Zaurus binaries from ports don't assume that they are being xscale optimised. They (I'm pretty sure about this) all being built as default arm binaries which makes them pretty slow, particularly if you have built things like ScummVM and libSDL.
You can 'hint' to the build system that you want xscale binaries by doing the following before you make a port.
in the case of libSDL this makes a significant difference in performance speed.
Ideally once you have started the make on the port and it has passed the configure stage you should be checking that the -mcpu=xscale flag is being included in pretty much all the compile statements that fly by.
Well worth a rebuild of a few things if you didn't do this
take note, if you just redo the make install it may look like the library has been replaced. it almost certainly won't have. you will probably have to do...
pkg_add -r -F installed tarball.tgz
Don't believe it until you see it being removed and re-added.