The US Federal Government has plans to offer both Software as a Service for government agencies and a cloud-based platform for agencies to develop, test and deploy new applications.
NASA has also been experimenting with Cloud Computing.
If the US Government can start to use Cloud Computing then there should be no reason Enterprises can't consider it as a new resourcing option. There's an awful lot of scare mongering still going around - particularly in relation to security and integration. Granted, whether these are perceptions or reality they need to be addressed. However, these are relative problems which may not be an issue depending on what you are doing.
I think of this as like the Movie Critic in the newspaper. How many times have you seen a film review which said the movie was terrible, when in fact it was fantastic when you saw it? The key point here is that the film critic's opinion is just that, their opinion. Make up your own mind. The same applies to technology - especially for the more innovative / new stuff. There is always going to be people telling you the 10,000 reasons you shouldn't use it. What are the 3 reasons you should?
Make up your own mind.
ZeroTouch IT Ltd