shai@Gauss:~/Packages/ion-3ds-20070318$ apt-cache search ion3
ion3 - keyboard-friendly window manager with tiled windows (devel)
ion3-dev - ion3 development files
ion3-doc - ion3 documentation
ion3-mod-ionflux - remote control for the ion3 window manager
ion3-scripts - user-contributed add-ons to the Ion 3 window manager
stalonetray - Standalone freedesktop.org and KDE systray implementation
shai@Gauss:~/Packages/ion-3ds-20070318$ sudo apt-get build-dep ion3
Reading package lists... Done
Building dependency tree... Done
E: Unable to find a source package for ion3
shai@Gauss:~/Packages/ion-3ds-20070318$