System, device, method, and computer program and computer program products for providing communicating between devices having similar or dissimilar characteristics and facilitating seamless interoperability between them. Computer program software and methods of and systems and devices for sharing of content, applications, resources and control across similar and dissimilar permanently or intermittently connected electronic devices. Devices, systems, appliances, and the like communicating and/or interoperating within the framework provided. Creationism provides a method used by applications or Darts to dynamically generate applications or Darts highly customized for a particular target device and/or communications session and/or purpose. Instructions in the instruction set exist for programmatic generation of Darts from parts of the running Dart itself and any information that can be collected or computed by the running Dart.