Getormr release a open beta of Ormr, a procedural graphical editor based on levels fast and light.
 
Among its features are Seamless vector and raster, non-destructive editing, 16-bit channels, PSD import, blendig layer effect and more...(please see HERE for a complete list)
 
For more info: http://getormr.com/features/?Features
To partecipate in the open beta program: http://getormr.com/download/