In the half ( or the middle, you can choose) , of somes ,
we can found in the pre-Release notes of the next Inkscape 0.49 Release (planned for the 21 of December),
New Flash XML Graphics (FXG) export format.
New Synfig Animation Studio (SIF) export format.
New Visio (VSD) import format.
a good news! and others littles improvements.
Nota //// Collaborate with Synfig? (link) ///