I think you design is quite nice. I have a suggestion though. What if you simply put context sensitive buttons on the search results themselves. For example, if

I think you design is quite nice. I have a suggestion though. What if you simply put context sensitive buttons on the search results themselves. For example, if you search 'Mike', the contact result would display a Phone/Message icon; if you search for a song, it would display a Play/Pause button. I feel this approach can reduce the number of steps even more since you won't have to select the filter at the bottom. What do you think?