The Google Nexus 4 is a 4.7 inch device running on a quad core processor and Android v4.2 Jelly Bean. It also comes with the new Photo Sphere feature for the camera which allows you to take 360-degree photos of objects. It also features Gesture Typing which allows you to hover over the letters of the virtual keyboard to input text.
8GB for $299; 16GB for $349; available unlocked and without a contract on 11/13 on the Google Play store in the U.S., U.K., Australia, France, Germany, Spain and Canada. The 16GB version will also be available through T-Mobile for $199, with a 2-year contract (check here for more details).