The Point of Cloud Computing is ...
"... to remove physical & human hurdles so your company can have the technical agility required to be successful" - Dave Nielsen, May 4th, 2011
Four Essential Characteristics of Cloud Computing
On-demand - the user can sign-up for the service without waiting.
Self-service - the user can use the service anytime, without waiting.
Scalable - the user can scale-up the service when needed, without waiting for the provider to add more capacity.
Measurable - the user can access measurable data to determine the status of the service.