I recently posted a POGL 0.55 candidate (See OpenGL Headline News).
It’s been tested on Windows (NT/XP/Vista) and Linux (Fedora 6, Ubuntu/Dapper).
I’m looking for testers for other platforms - I have a binary ActivePerl PPM distribution for Windows and source distributions via SVN, tarball and ZIP: http://graphcomp.com/opengl
Let me know if you encounter any build issues - thanks!