> "This is an exaggeration"
Ya think? Maybe when a big company is threatening a rube. If two big companies are making a deal, you can be damn sure that they use all available software to analyze each other's portfolios, and then read, manually, the ones that seem important. And get their legal counsels for the relevant divisions to read them, too, although they probably already know them.
Cross-licensing deals are immensely complicated. You have to think about indemnifying the partners, in particular. I actually sat in the Apple v. Samsung trial for one day, because Google was indemnifying Samsung, as they frequently do for Android partners.
A big problem with Motorola was: they actually make the hardware, so Google was being sued directly. The patent infringement suits are usually against the company that makes the device.