Arc Second Inc. released PocketCAD Viewer 4.0. PocketCAD Viewer 4.0 views and redlines AutoCAD or MicroStation drawings in the field or on the manufacturing floor. New features include improved performance, increased file compression to speed file transfer, updated user interface, the ability to read DWF files, improved DWG and DXF file support, support for MicroStation DGN files, support for PocketPC 2002, and support for architectural, survey, engineering, decimal and fractional units. (Arc Second, Dulles, Va.)