Synfig is getting closer to final release for version 1.
Some specs for the new version:
- Single-WIndow and Gtk3 UI
- Group transformations widget
- Bones / Cutout tools
- Bone distortion
- Sound layer
- Bones
- Frame-by-frame animation (bitmap)
- UI improvement
- Rendering speed optimization
- SFG Format
- Sound support
- Video import
- Vector drawing tools
- Scripting (python) (minimal support ready : scripts can be called from an entry menu)
- SWF export
Download link Synfig Studio 1.0 stable release: http://www.synfig.org/cms/en/download/
If you want to use Inkscape for vector graphics and then export to Synfig you need SIF exporter extension.
Update 28 apr. - Synfig Studio 1.0 is released