For 1.0 I think glChess should have a new name... It has been suggested to use a generic chess name like "Checkmate". The problem with this is generally these names have already been used. I think it's important for a project to have a name that stands out and it doesn't have to relate to the project (see Mesa).
So I was thinking perhaps "Looking-glass Chess". For those familiar with Lewis Carroll will get the reference. It feels a little bit of a mouthful, what do others think?
From a user-perspective this would only be in the about dialog and on the webpage. All menu references and window titles would just be "Chess" as Gnome started doing from 2.?. The binary has a character inversion from glchess to lgchess.