It's kind of an odd question, but I have to ask. I was looking into a cheap android tablet (because why not) and was really considering the Amazon fire, when the thought struck me: I already have the shield portable, can I connect it to a 7" screen via the hdmi port and use it as a tablet? Any thoughts or suggestions would be appreciated. I don't know much about how the shield works (navigation buttons?), so it may or may not be possible, but I thought I'd ask.