Info-ZIP portable compression/archiver utilities (Zip, UnZip, WiZ, etc.)
Android, DOS, FirefoxOS, Linux, MacOS and Windows all in one..
Sensa is not an operating system, is a work environment compatible with Android © 4.4.4, Firefox OS ©, Linux Ubuntu 12.12 ©, MacOS Classic 7 ©, MS -DOS © operating systems, and Microsoft Windows 8.1 ©; whose distribution is free, and with source code available under GNU GPL 2.0 license .
A cross-platform «Boulder Dash»-like game in Oberon/Component Pascal
A goal of this project is not only produce a small funny game. It demonstates the power of Oberon technologies, shows how a game can be written to be launched under such different platforms. Portability is a strong feature of Oberons, and I use it, - Dash has portable game code (common for defferent platforms, written in Oberon-1) and non-portable layers to a hardware platform. Dash shows the portability and cross-platform in widely look, more than mainstream solutions can propose us. Yes, I believe that Oberon technologies are very perspective for future.
Circuit simulators like SPICE for low memory computers
SPECI-SPICE is a subset of SPICE intended to run on low powered computers like Amstrad CPC, ZX Spectrum, CP/M machines, old PC machines, some programmable calculators,etc. by keeping most important functionality of SPICE 2.
A collection of dozens of entertaining educational programs. Optionally bootable from Floppy, CD, or USB. Only the open source portions of FUZOMA are hosted on Sourceforge. Visit the Project Homepage for the full version of FUZOMA.