Mac users interested in Download kirstens viewer s21 generally download:
Opensource Created Custom Viewers For Virtual Worlds like SecondLife.
The S21 viewer is based on S20 and viewer-development codebase. This is current and has all the functionality available in the official viewer 2.0. This client forms the basis of the next generation of 2.0 based clients.
S21 has modified rendering and various differences from the offcial client actively developed.
