Earlier this week we reported that a firm named Lodsys had started to send out letters to Apple developers claiming that they were infringing on a Lodsys patent related to in-app purchases. Apple stepped in and claimed that, since it licenses Lodsys’ products and services, its developers were also entitled to use the technology. Now it appears that Lodsys is also going after Android developers for the same reason. “We recently implemented in-app purchases for our Android application and several weeks later we received a letter from Lodsys, claiming that we infringed on their patents,” one programmer said in a Google forum. It is unclear how many Android developers have been contacted, and Google’s Android team has yet to respond, but we hope the search giant backs its developers the same way that Apple did.