This is quite a rare, unique product but a wonderful centre piece or advertising tool.
Here is the UK Reseller for the i-Ball and has all the informaiton - http://www.spectra-displays.co.uk/27.php
You can program animations from the included software, create your own or input your own text eg. put the Bride and Grooms name to scroll round.
It can be used upright, or invert it and hang it from your truss, and the animations will detect and display accordingly.
These retail for £599 + VAT
Asking for £180 and this includes the software and cables.