a) The CD add on was for Super Nintendo (naturally) but the rest of story is accurate
(see here:
http://www.consoledatabase.com/consoleinfo/snescdrom/)
b) This type of controller HAS been done before (see this article:
http://touchds.com/index.php?name=PN...3e1cd34a4b6bb4 )
see also
http://www.walmart.com/catalog/produ...uct_id=3132849
http://www.walmart.com/catalog/produ...uct_id=3132850
So copyrighting will be tough to do.
Disclaimer::: before some twit jumps down my throat and says I'm wrong, a) actaully bother to follow the links
b) I'm not saying that Nintendo's controller isn't light years ahead of the ones listed, just that it isn't the first of it's kind.