1 - What would be great for me is when you review academic papers and i need to know which part of the work is:
-completely original
-what is purely copy/paste
-what is a pure paraphrase
-what is saying exactly the opposite of a previous reference.
Ideally, it would check the references inside the paper + all the previous work of the authors (and may check citeseer to look for references which have been potentially omitted -voluntarily-).
That would be really useful.
2- I would like a tool checking all the questions in SO, looking for the same kind of questions with a bunch of responses and generating a response that may be adequate.