Tested the Navigation today on my Nexus 7. The 7 inch screen is perfect since it's not too big but big enough to see things clearly on the map. The voice is nothing like I've ever heard before. It doesn't sound robotic at all. The voice guidance on the Nexus 7 blows away the voice guidance on my Skyrocket. I'm not sure if its Jelly Bean or what but it sounds so much better. Here's some samples of the clarity of the voice guidance on my Nexus 7. Please don't mind the video. I was just trying to record the voice.