[Bf-python] Setting the viewpoint in python scripts

[Rodrigo Damazio]

       Hello. I'm new to this list, so I apologize in advance if this 
has been answered before.
       I'm writing a script which would need to obtain the currently 
active 3D view(or detect that the currently active window is not a 3D 
one) and  change the position(offset) and rotation(quaternion) of its 
view (not the camera - any view). I'm wondering how I could do that. I 
have found the Window.SetViewQuat() method, but that doesn't set the 
offset, and I don't see a way to get the currently active view.
       Btw, my goal is to write spaceball support for blender, and I was 
thinking of doing that as a python script. Another feature I would like 
to see (though I understand it is a more complicated one) is to allow 
the user to select any command to assign to each spaceball button.

Thank you
Rodrigo