pdaxrom (formerly known as x11rom) is a X11 based rom for cxx0-zauri. There is a wide range of software available (e.g. abiword, gnumeric, mplayer), as well as native and cross compiler sdk.
Take a look at the offical screenshot section or directly download the software.
Pdaxrom is very flexible, you can choose among different window managers (e. g. matchbox, fvwm, fluxbox, fvwm and fluxbox on zaurus) and have full support of qt3, gtk in your applications.