[JoshTriplett]

Translated from patentese:

- Two or more windows displaying data from different sources

- The sources have sections

- Sections from one source have corresponding sections in another source.

- Changing sections in one window makes other windows change to corresponding sections.

- Basic message-passing communication to implement the above.

[rafaelferreira]

Prior art: Smalltalk MVC. Reference: Krasner&Pope, 1990 [1]

[1] http://www.ics.uci.edu/~redmiles/ics227-SQ04/papers/KrasnerP...

[mey]

So any online video game is prior art?

[wickeand000]

I think my current terminal window is prior art...

[GoodIntentions]

There must be hundreds of examples of prior art.

I wrote a split screen sprite editor for dos about 20 years ago. I bet it's still on a 720 floppy some place in my basement. In fact, I think I have a source printout filed away too..