Considering that Android 4.0 was introduced in October, 2011, it would seem somewhat ... well, insane to release 5.0 as Jelly Bean, so despite numerous rumors that Jelly Bean would be 5.0, it now appears it is going to carry the 4.1 version number, instead.
The information comes via a listing for the Galaxy Nexus, which Google sells at the Play Store.
Although the text has been redacted, for some time it said that the Galaxy Nexus was "soon the first phone with Android 4.1 Jell[y Bean]." Notably, it doesn't say the Nexus is the first device to carry Android 4.1, which means the still heavily rumored stock Android Nexus tablet could take that honor.
Google I/O takes place in less than a week, which could explain how the erroneous text got on the Play Store site. Once the Internet giant outs the Nexus tablet and Jelly Bean, they will probably put the text back up on the site.
The Galaxy Nexus on the Play Store site sells for $399. While that may sound expensive, it's actually quite cheap considering its an unlocked device with no contract required. An iPhone 4S, for example, would run $649 similarly equipped.