After the geo-processing library Sextante 
was made available for gvSIG, gvSIG CE, and for ArcGIS, a plugin for QGIS was released by Victor Olaya in cooperation with the QGIS community. Now the Sextante toolbox truly has the potential to become the most comprehensive and widely used GIS geo-processing tool that runs on almost any software platform and in almost any GIS software 🙂 . Congratulations Victor and QGIS community !
For the plugin a rewrite of Sextante algorithms in python is being developed and will take some time to be completed. Currently the Sextante toolbox in QGIS provides access to Grass, Gdal, LASTtools, Sextante Modeler, OTB tools, R, SAGA, fTools and mmqgis. Lots more to come in the next months !