Nexus 5 shows up on Google's Play Store

We still haven't heard anything official about Google's next Nexus phone, but tonight some people are already seeing it as an option in the Play Store. People (also depending on the browser you use) see the Nexus 4 while others get the result shown above, with a 16GB (from the link in the page, although it does not go anywhere) Nexus 5 listed for $349, along with the Nexus 7 and Nexus 10.