I published two open-source versions of Dendro.
Dendro 1.1 : More stable and faster version of with Dendro. Compatible with Petsc 2.3.3
Dendro 1.3-beta : Petsc 3.1 compatible Dendro. Enjoy the coolest features of Petsc 3.1 with a faster optimized parallel elasticity solver.
Published Open-Source Software:
Dendro Version 1.0.3.1: Used Parallel Geometric Multigrid based PDE Solver
Author: Jayanta Mukherjee and William D. Gropp.
GPL. http://sourceforge.net/projects/dendro-opt/