Google's Nexus 5 is not exactly the world's best kept secret, but if you needed further confirmation that the device is coming soon, we've got it: the device briefly appeared in Google Play Store with a price tag of $349.
The listing was quickly removed (and replaced with the listing for Nexus 4), but not before it was noticed by the folks from Android Police.
[seealso story="2013/10/07/nexus-5-leaked-lg-manual/"]
There were no details about the device except the $349 price for the 16GB model. For comparison, the Nexus 4 cost the same (with 16GB of storage memory), but it was also available with 8GB for $299. Of course, since the listing was published in error, it's quite possible that the price tag isn't real, either.