Do you trust cloud computing?

Read Write Web recently took a look at how cloud computing is being accepted by the public. As a major buzz word of 2008, there are many people who are not convinced of the power of cloud computing. They're looking at it as one way to back up data, not a cloud that will keep data safe in one spot.

Some said the cloud was trustworthy enough for non-critical data, but not for secure and private communications, such as those used in the enterprise. And still others noted that trusting cloud services was risky, especially given the recent shutdowns of the once-hot services like I Want Sandy, Pownce, Google Notebook, and Jaiku.

Do you use cloud computing on a regular basis? What are your thoughts? Do you keep multiple backups other than your data in the clouds?