And on that note, let me be the first to say I've broken my application manager.

I went to the list of installed apps to see what non-visible packages were installed. Then I closed application manager.

Now, whenever I go to list installed applications, update, etc, I get "Operation Failed" and all lists are blank.

It does however appear that I can enable matrix-mode (tm) and still install from file (haven't confirmed), so I'm not completely screwed. Just mostly.