User: Unusually Themed

One useful thing - already invented

On: Microsoft's Vision Of Future Workplaces

XML (Extended Markup Language) invisibly marks up a list of executives' names in a PowerPoint slide, so that dropping the list into an e-mail's "To" field turns the names into the execs' e-mail addresses.

This useful invention... i.e. keeping the context of objects on the screen... is 20 years old, invented at MIT for the Lisp Machine. Natch.

Ciccarelli, E.C., Presentation Based User Interfaces, AI Technical Report 794, August 1984.