Their middleware is very valuable. They have probably the best behavioral procedural animation system that is most notably used by Rockstar Games in GTAIV&V, Max Payne 3 and Red Dead Redemption.

It doesn't really fit with Zynga's portfolio though, does it?

That's the point, isn't it? Zynga wants to expand its mobile skillset.

regardless, the company is worth more than that IMO. I was very much impressed by the tech used in Clumsy Ninja.

They're going to make porn games with it. Sounds crazy, but you heard it here first.

The team is gold. They understand mobile gaming like noone else and actually had a row of hit games already. MyHorse, Backbreaker, CSR Racing, Clumsy Ninja

They did exactly that for OMGPOP/Draw Something. Second time's the charm?

their game physics engine is second to none, and they also got some of the best game designers.