[erlang-questions] A good application written in Erlang

[Jilani Khaldi]

Hi All,
for a long term project, should a vBulletin (http://www.vbulletin.com/) 
application like written using Erlang/Mnesia/YAWS be a good project?
And what about an e-learning system written using Erlang/Mnesia/YAWS?
Thank you.
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Jilani KHALDI