http://www.mobaction.com/phxbux/faqs.html
There's an article about them in this week's CoinWorld on pages 5
and 78.
I got one.
http://www.knightsofthecointable.com/kotctgallery/main.php?g2_itemId=2974&g2_navId=x5ebbbe66
I don't know what's up with my scanner but it's a lot lighter than that.