This sounds about as legit as any other bogus lawsuit. Nintendo will win this, and if they don't, it's a sad day for not just gaming but everyone.
True, the patents only exist to ensure that a company is able to market products developed with their own ideas, not just choke the competition. Nintendo should have a fairly decent chance, as the Interlink patent appears somewhat vague and the demands are high.
BTW, I love that ad,
MrMark0673.
Now you're playing with power!