 The operating system will be based on the common open source Linux distribution Debian which allows the use of already available desktop open-source applications from the Debian ARM repository, for instance Firefox, Thunderbird, LibreOffice, GIMP, etc.The around 1,500 applications, created for the mostly open source OpenPandora software ecosystem, are expected to be available for the Pyra in short time by source ports.The various model specifications are summarized as follows