Ron Gilbert did not work as project-lead on MI 3 or 4.
Maybe some little consulting, but thats not what I call
having big influence in the way the game is made.

Some small recent games of mine:
Griefer 4k http://damocles11.byethost9.com/griefer4k.html
Kobold 4k http://damocles11.byethost9.com/kobold.html
Cave 4k http://damocles11.byethost9.com/cave4k.html