I work for a semi large Network and Hosting provider in Europe that is trying to provide Cloud for our Enterprise customers. We have banks and large financial firms that are "very excited" about the project, which basically means that they understood the buzzwords.

Cloud in the Corp. world normally means VMWare vCloud (which we are now offering) or just VMWare ESX hosted in a remote datacenter.

So "the cloud" does exist in the Corp. world, its just that they are on average 5 years behind the rest of the tech world. I also think that a lot of these companies need to be 5 years behind, as their decision process on anything except cost savings normally takes months to complete with feature creep etc.