Use p7zip 9.20+(GNU/Linux) and 7-zip 9.20+(Windows) for extracting 7z archives.
ZenGL
Version: 0.2.8
Status: stable
Date: 2012-04-30
All archives contain source code of ZenGL, demos and compiled libraries for every supported OS(except DirectX version because of obvious reason). Archive with source code doesn't contain compiled binaries.
This is an unstable development version of ZenGL. Main features of this version are support of iOS and Android, support of zip archives, video decoding subsystem, bindings for C/C++ and so on. Use it at your own risk :)
Version: 0.3.0 beta 3
Status: unstable
Date: 2012-05-12
Latest development version always can be grabbed using svn.