They are basically the same if you are paying attention.
The difference is Ihub does not have to maintain the servers and hardware where the software and data reside and run an interface out to the world wide web.
Everything moves to a 3rd party that will host the software and data and maintain the interface to the WWW. The Geeks will still have to maintain and make changes to the software and Ihub can have a garage sale with all the equipment left behind.
Amazon, Google, Microsoft, are just a few players in offering cloud computing services to clients.