While my current projects are a little less ambitious than what you are asking for, and focused only on improving software, I'll say them anyway. * An implemen

While my current projects are a little less ambitious than what you are asking for, and focused only on improving software, I'll say them anyway. * An implementation of Nix's ideas for mere mortals. * Version Control for non-technical users and for any kind of binary files. The last one is interesting because most users will just see it as a more powerful undo/redo system.