Developers Get Patent Threats Over In-App Purchasing

The makers of several iOS applications have received cease and desist letters over the use of in-app purchasing, from parties who claim the feature infringes on an existing patent. Computer LogicX, which makes Mix and Mash and Mix and Mash LITE, as well as developer James Thomson, who makes PCalc and DragThing, have received letters threatening legal action if the feature is not removed.

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