Hooray! The internet rejoices! Nice baby, there, Doctorow!

I think any concerns brought up over sequels can be mostly squashed if it is made clear which works are unauthorized, regardless of whether or not anything about the original work is trademarked. If it is unclear, I think it easily could be argued that unauthorized sequels devalue future official ones. But I still think any allowing for commercial unofficial sequels will be fought hard, because what movie studio would want to have to compete for the better product involving characters and worlds they originally introduced.

The reason I originally brought up star wars is that there is enough love for the series and hatred for the prequels, that a skilled and well funded group of people could make a serious go at taking Lucas's position as the go to guys for Star Wars stuff. If the law was on their side. It would benefit society, it wouldn't directly substitute for any specific Lucas work, but it could run him out of the Star Wars sequel business. Which he or anyone in a similar situation would deserve, in my opinion.

I like the definition, but I think where this might get thorny is the subject of sequels and similar types of derivative works. For example, an unauthorized sequel to Star Wars, or a work set in the same universe adds value and does not substitute for the original, but I doubt Lucas would like someone beating him to a Star Wars TV show, or publishing unauthorized Star Wars novels. I think his objections would be fairly reasonable. But a clause saying that works that substitute for derivative yet to be created would be ridiculously open ended. I don't think it would be any great tragedy if anyone could publish sequels to serieses--that can't be the real plural of series, but bear with me--or even to publish sequels to serieses still in progress. But it could be a hurtle for this definition would otherwise seem reasonable to even the squares.

Jimwich says blade runner, but if you want to get more specific, I'd look to the title sequence of the movie "Ghost In The Shell". Also look there if you want to see awesomeness.

I like the big text for the main menu. Snazzy and functional. Though I'd hope there would be customization options.