You know, this is an idea I had too, and then sat on (much like the author describes). Not Oregato, but a hub for sharing ideas and generating new software projects; I have a tonne of things I'd like to implement, and nowhere near enough time to make them.
Some sort of centralised idea repository (a wiki is almost fit for purpose, but makes it hard to categorise, rank and index ideas) where anyone can throw their thoughts for others to comment on, and still others to pick up, would be awesome.