For anyone looking for an ~20 minute intro to why this is a big deal and the impact it has on small tech companies: https://www.youtube.com/watch?v=sG9UMMq2dz4
tl;dw: There are some over-broad patents on usage of very common technologies (using wifi or selling on the google play store are two egregious examples) that are being used as a bludgeon against small and medium sized firms that can't afford to defend themselves. It costs about $3 million to defend against such a suit, and the Eastern district is known for refusing to force plaintiffs to pay defendant's attorney's fees even if the suit is ultimately dropped.