Aaron Boodman (the creator of Greasemonkey) and others are working on this part of chrome. Aaron had initially tried to get his idea for extensions as greasemo

Aaron Boodman (the creator of Greasemonkey) and others are working on this part of chrome. Aaron had initially tried to get his idea for extensions as greasemonkey scripts into Firefox between 1.5 and 2.0. Google isn't a small startup. Even if Mac is more important than their extension story, it makes no sense having non-Mac developers working on it. They aren't simply building a GUI, they are doing hard "OS level" work of building the security sandboxes for processes - something that is requiring trail blazing work.