My focus in this area is massive models visualization. The application for visualization of gigantic meshes is currently in development.
The software is designed to be out-of-core, ie. will allow display models of virtually any size, that is much bigger than main memory of the computer. Modern extensions of graphical cards are used to reach maximal performance and interactive framerates.
Read info about this project on Faculky of Informatics, Masaryk University site http://decibel.fi.muni.cz/wiki/index.php/FEM_visualization.