I don't know what you mean by lip service;
Firstly while the leaks I mentioned above might not seem significant and embarrassing to you but I would imagine that they were pretty embarrassing and problematic for those parties involved, and may be of immense interest (and use) to others, for example the leak of the Australian censorship list was infinitely more interesting and informative than the cables that have made the Australian newspapers thus far (note that the censorship list also made the Australian newspapers when they were released on wikileaks).
Certainly the recent cable leaks have received comparatively larger coverage but that's because the US has massive influence on the rest of the world, it's not like the NY Times or the South China Morning Post would put a story of Peruvian corruption as their front page, most of their readers wouldn't care. The cables that have received coverage in the Australian media, have been those relating to Australian interests (telling us what we already know (Kevin Rudd is a control freak))
Secondly, wikileaks can only leak what they've been given. I've not read of any reports that have stated that wikileaks are holding back leaks to focus on embarrassing the US, and as I shown in my earlier post it's not like they haven't leaked non-US leaks or that they are trivial.
Perhaps I'm just misunderstanding you?
PS. What's DFIP? Google brings up nothing.