Abstract: Systems, methods, computer readable media and articles of manufacture consistent with innovations herein are directed to gesture based user interaction, user interface and/or other features. According to one illustrative implementation, for example, an illustrative operating system may comprise an input program using images from one or more cameras to analyze and interpret user gestures, may (in some implementations) involve an operating system based on Linux kernel with access to local disks and files, and/or may include or involve a graphical user interface outputting the cursor corresponding to user gestures and providing a uniquely designed interaction between the gestures and content. Additional aspects for interacting with other/multiple devices are also disclosed.