Android users face a new threat, a rogue app that tells all their friends they pirated the program, a Symantec security manager said today. The app is a fake copy of the legitimate "Walk and Text," software that uses the smartphone's camera to show what's in front of the user while she simultaneously walks and texts. Walk and Text is available not only on Google's official Android Market app store , but also on several unofficial e-marts. It's one of several mobile apps created by Georgi Tanmazov, the CEO of Incorporate Apps.