The social messaging app Path recently announced that it's gaining a million users each week, but it may be using some spam-like methods to achieve that growth. Several users -- and several Engadget staffers -- have reported that the app has been sending smartphone contacts unwanted text messages, a problem that was first pinpointed several months ago. Contacts on the receiving end have seen messages stating that a friend wants to share photos with them, with a prompt to sign up for Path
