Interesting timing. I would not be surprised if the May launch of genius.com was just something hacked together over a weekend and launched just to push the domain price up.
There isn't much talk about genius.com around the May launch (apart from a bit of press-release marketing). And the focus in acquisition in February leads with LeadRocket, tacking on the brand Genius as an afterthought.
Interesting set of coincidences. I wonder when Callidus software knew of RapGenius' interest in the genius.com domain. And their original intentions for it when they acquired it in February.