Louie where did you get this non sense? OpenCog doesn't need any proprietary add-ons and is better and cleaner (and keeps getting better and better) than the Novamente code from which it has been seeded.
You are either hiding your identity or making up the fact that you've tried to contribute because I've never heard about you on the email list or IRC.
Ah, OK. Thanks for clearing that up. Sorry for my perhaps harsh tone, I didn't imagine your comment would be based on an old/incomplete version of OpenCog, you should have mentioned that in your post or even better update your knowledge before posting! There's been a lot of work since then.
You can use it to run a virtual pet under Multiverse (although you need either 2 machines or a virtual box, one with Linux and the other one with Windows because OpenCog isn't completely ported for Windows and Multiverse runs under Windows). It is also used to control the Nao robot in a lab in China. Soon it will be possible to connect it in the Unity3D game engine with a much improved tool kit to code you own bot (because currently the API is really tough to understand and use).
Just for playing around with the various components (except MOSES which is a standalone executable for now) there is a Scheme binding, and there will be soon a Python binding.
It's really a lot of work and except the HK team who got a grant to focus entirely on it for the next 2 years and some students in the BLISS lab in China we only manage to contribute via loosely related contracts that do not always help advancing OpenCog itself (though we're trying our best to direct our efforts toward it).
So any help is very welcome!
http://wiki.opencog.org/w/Volunteer http://wiki.opencog.org/w/The_Open_Cognition_Project