What's the advantage of this control over the TOpenGLControl that's already included in Lazarus ?

Lazarus control already supports gtk1, win32, carbon (Macs). And Lazarus control has some nice features like display lists sharing. Gtk2 version of this is started but unfinished.

(Uhm, and sorry, I don't want to sound all negative about new Lazarus control; sure it's always good to have alternatives