On a more general note, this reminds me of old Microsoft's tactics. Google should really stick to the search, but instead they throw together something that mimics competitor's feature. Something that looks more featureful and which is free, but upon closer inspection is effectively a half-ass effort, because it's an entirely different domain that's not their specialty.
[0] http://www.wolframalpha.com/input/?i=sqrt%28x*x%2By*y%29%2B3...