Apple Legal vs Lodsys

Previously: Apple Legal sends let­ter to Lodsys claim­ing that Apple has licensed Lodsys pat­ents on behalf of all iOS third-party developers. Lodsys answers stat­ing that Apple is mis­un­der­stand­ing the license at hand, and starts fil­ing law­suits against seven small iOS developers.
Today, Apple filed a motion to inter­vene in the mat­ter. From Foss Patents:

Apple’s pro­posed defense against Lodsys’s claims is exclus­ively related to the asser­tion that the alleged infringe­ments are covered by an exist­ing license agree­ment in Apple’s favor (which I’m pretty sure harks back to when Lodsys’s pat­ents belonged to Intellectual Ventures). (…) Apple does not raise any other affirm­at­ive defenses, such as claim­ing that the pat­ents are invalid or that they don’t read on the accused products.
(…) But for Apple’s own pro­posed par­ti­cip­a­tion as an inter­venor it makes sense to focus on the the­ory of exhaus­tion (mean­ing that Lodsys can’t get paid twice for a licensed use of the pat­ents in ques­tion). In con­nec­tion with that par­tic­u­lar defense the­ory, Apple has by far the strongest basis for ask­ing to be admit­ted as an intervenor.

More info on Foss Patents.