Difference between Rufas' cube and RufasAda?

Whats the difference to http://www.lgdb.org/game/rufas-cube ?

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The essential difference is just that this version is written in Ada. So it may be one of the few Ada examples that use "modern" OpenGL that contain all the pieces to actually compile and run on both OS-X and Linux.

But it's the same game, isn't it? So we could merge them?

Yes, I'd like to merge them. Also Seven and SevenAda.