11, plus three private boards I no longer have access to but haven't felt like removing yet.
I generally add the boards of whatever games I'm currently playing, and then I eventually unfavorite them when I'm done. I should remove Professor Layton and the Unwound Future and Persona 3 now.
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http://img94.imageshack.us/img94/4418/dsc02035h.jpg
http://img718.imageshack.us/img718/7011/15714q9.jpg