It gets stranger! I've just checked the label on the box (the box is marked Pogoplug Biz) but the ID label has the model as "Pogoplug Pro BIZ - UK" I've submitted a support request and I'll let you know what the pogoplug support team tell me when they get back from the New year holiday!
Thanks
Jeff

JohnB_UK:
My version certainly does. I don't know how long it will last though, I've a feeling they may disable it in a future firmware flash! - here is the response from my support call to Pogoplug:

Hi Jeff,

This is Christopher, Director of Pogoplug Support.

Actually, new Biz units shouldn't have shipped with the wireless feature enabled and will likely be disabled in the not to distant future. Because Biz units would likely be accessed more than regular Pogoplug's we thought it better than Biz units be set up only using a wired connection.

Should you require further assistance, please reply to this email. Otherwise this ticket will close in about 24 hours. Even after it closes, feel free to contact us at http://support.pogoplug.com/requests/anonymous/new

Kind Regards
Christopher

Good Luck
Jeff