Earlier quoted context omitted.
I'm guessing that they evaluated the patents before Motorola got preliminary injunction against Apple. IIRC, fewer than 2-3% of all patents actually survive and are upheld in patent trials, so they are not probably wrong when they say 48% of Moto's patents are worthless, but that isn't saying much. Take for instance, Apple's design and utility patents asserted against Samsung in Germany. All, 100%, of their patent an…
It’s estimated that Microsoft made more from each Android phone sold via patent licenses than Google. Apple sued Samsung not for the Android parts but for the design of the phones.
Microsoft was a tiny iceberg and exemplified what could have happened to Android. Samsung was reportedly paying close to $1B for a couple of years, until MS bought Nokia.
Google effectively neutered Apple's patent trolling operation by threatening to expose the troll's true motive, and prevented potential threat from Moto patent portfolio by preemptively purchasing it -- on the cheap.