Calligra Flow
xfig2sml The xfig2sml project allows  Dia stencils to be imported into Kivio. To get lots of extra stencils for Kivio, just download xfig-stencils.sml (actually, it's xfig-stencils-0.1.tar.bz2) from the "Files" tab on http://sourceforge.net/projects/xfig2sml, then import this tarball directly into Kivio using "File/Import Stencil Set".