I don't think so, mainly because ion3 doesn't really have a "desktop". It is fully programmable though, so you could easily write a script that searches your $HOME for .desktop shortcuts and adds those to the builtin menu, creates keyboard-shortcuts or even dock-icons for them.
Personally I have never cared much for desktop-shortcuts. My most used applications are all on the keyboard (F1 xterm, F5 browser) and for the less used stuff I simply "F3, amar<TAB><CR>" (runs amarok via the "launch" shortcut).
Personally I have never cared much for desktop-shortcuts. My most used applications are all on the keyboard (F1 xterm, F5 browser) and for the less used stuff I simply "F3, amar<TAB><CR>" (runs amarok via the "launch" shortcut).