I looked over the DSL website, but I didn't find a version of DSL compiled for ARM XScale processors. It looks like DSL is an optimized build of Intel x86 Linux executables, and doesn't work on any other Computer systems (Mac, Unix, XScale ARM, etc) except for Intel x86.
So... it doesn't look like it would work with the Zaurus... unless someone recompiles all of the source code used to create each piece of the DSL image. Also, the final build may be much bigger or smaller than the current 50 MB DSL build.