Daniele and I have completed a working tutorial for libigl. The course at SGP 2014 also encouraged us to advertise a proper Version 1.0 Beta release of libigl.
This change marks our confidence that libigl is ready for wide use in geometry processing research. While we still qualify our release with "Beta" to indicate that the library is a work in progress and documentation, for example, may not be as thorough as commercial or better established libraries, we're continuing to develop libigl and encourage you to git pull our repo and stay up to date.
Here's the table of contents to our tutorial. Each section comes with a working mini example main.cpp which demonstrates a specific function or routine available in libigl: