DxO Labs has announced version 1.1 of its ViewPoint distortion correction software, promising more accurate tools and faster operation. Viewpoint is designed to correct keystone distortions (converging verticals and horizontals), and restore more natural proportions to objects towards the edge of the frame when using wide-angle lenses. It is available either as a stand-alone tool or as a plugin for Adobe PhotoShop (CS3 or newer) or Lightroom (version 3 or newer), and for both Mac and PC.
News: Digital Photography Review (dpreview.com)