Using the cloud for corporate IT is very compelling because of agility and costs. Here are the barriers:
1. Cost and benefit is unclear
2. Unknown management issues
5. No easy way to change providers or standards
6. Low adoption
These are perceived barriers but perception is reality! The private cloud is starting to come on stronger as security is a lower concern in a private cloud implementation. Although the cloud is still a small percentage of overall IT investment it is a top priority for most companies and is growing fast!