I just completed setup for my TEMPO open source software for 3D visualization of EEG activity at SourceForge.net. TEMPO is able to read EEG recordings in standard EDF format and (if enough EEG channels available) to create animation of corresponding topographic maps over 3D human head model. TEMPO is Linux software, using OpenGL library for 3D rendering and GTK+ toolkit for GUI. Project home page is at http://tempo.sourceforge.net/.