Comment 17 for bug 316162

No i havent filed a new bug but perhaps i will.

Yes i am sure about Packagekit not being default. Packagekit has been dropped from Ubuntu all together in favour of AppCenter.
There is a thread in the Karmic Testing and Discussion section of the Ubuntu Forum.

But yes it was finally suppose to be default for Karmic but then again as was it suppose to be for Intrepid and Jaunty.

It is really starting to shape up pretty good now though and would have been a good time to bring it in.