Well I spent the train journey to work this morning watching TNA on my c7×0 using Xv under X11.
This is due to “sirfred” and his amazing new xserver for the imageon chips, http://www.openembedded.org/filebrowser/org.openembedded.dev/packages/xorg-xserver
I think this makes the c7×0 currently the coolest zaurus about.