The new release of SDI has been created. you can download it here. Udig has been integrated in this release in order to represent the data. GPS and WFS formats are now suported and several geospatial components have been added, like sSimplify, sSimpleGeomToMulti, sChangeLineDirection, sTransform. One nice improvement is the automatic determination of the shapefile or MIF/MID schema.
More information here.