Some obvious publish status marker on page

[magnetised]

Only way to see if a page has unpublished changes is to pull open the publish dialogue. Thing is with a lot of modified pages it's hard to see if one particular one is there (separate issue...;).

Some kind of "this page has unpublished changes" at the top, perhaps extending to markers on the individual content pieces that are modified.

Would be great to expand this to fields too, so you could see exactly what changed.