rename /opt/QtPalmtop/bin/Xqt-rootless1 to /opt/QtPalmtop/bin/Xqt-rootless-1
and
/opt/QtPalmtop/bin/Xqt-rootless2 to /opt/QtPalmtop/bin/Xqt-rootless-2
it should let you run two apps in rootless mode at a time. it should tell you to bugger off when you try to run a third one
i don't think its wise to run more anyway since the Z does not have that much cpu power and memory
personally, i dont like the rootless mode thing that much. it sounds like a good idea at first but once you play with it a bit more, you soon want to use the full xqt instead.
have you noticed you can cut and paste from qtopia into xqt?