What I did in the meantime is uninstall 0.6.2, disable Extras testing and devel, and reinstall 0.5.8 from plain Extras. This gave me back the Conboy icon in Others, I just had to re-create my desktop shortcut.

I'll try 0.6.2 again when it's in Testing, right now I just needed my Xmas shopping notes back, quick :-)