1. A method of interacting with on-screen content, comprising: obtaining content data associated with on-screen video content from a first mobile device, wherein the content data comprises at least one of (a) data extracted from the video content and (b) data converted from the video content; deriving a characteristic of the content data; recognizing at least a portion of the video content as a target object by comparing the characteristic with characteristics of known target objects; obtaining content information pertinent to the target object; and providing the content information to a second mobile device.