This is really a minor issue, but would be nice to have it fixed. The issue is that when VA Outline/View are enabled, one cannot anymore switch between the workspace windows using keyboard i.e. Ctrl+PgUp/Down. When jumping to either the VA Outline or View, this keyboard combination has no effect -> so I have to pick up the mouse, which is such a drag ...
It depends on your IDE. In VS2005 I use CTRL+ALT+l to place keyboard focus into Solution Explorer, and I have bound custom keyboard shortcuts to place keyboard focus into both Find References Results and VA Outline.
Or you can just use the IDE menus to do the same thing.