The cat is out of the bag, Sony! We just walked into Sony's CES press conference and look at what we found hanging around in the back? It's Sony's Xperia Arc, and it is one slim smartphone. Seriously, it's really thin and its concave back reminds us a lot of the Nexus S. According to the placard it has a "Reality Display" with a Mobile BRAVIA Engine. We're not sure what those fancy words mean, but the display (we're assuming it is 4.2 inches) is definitely extremely bright and crisp -- like AMOLED bright and crisp. We don't know the exact measurements of the handset, but it looks just as thin as the iPhone... if not thinner. Other than that we know it has an mini-HDMI port and runs Android 2.3 (confirmed on the device itself!). It also has a Sony Exmor R camera. We should be learning much more about this thing as soon as it becomes "official," but until then hit the break for some hands-on shots.