Surprise, Surprise… Microsoft makes Windows name OFFICIAL and there will only be three versions.
So what did we expect. Window 8 will be the consumer/home version, Windows 8 Pro is the business/enterprise version and what is the third version? WOA! WOA is the ARM version of the Windows 8 and that is all we get. That’s okay. What else do we need. This is of course overly simplified.
Take a look at the “Announcing the Windows 8 Editions” blog post to get more information. There is some detail here that will highlight the differences between the versions and you can determine what you will want from there.