I have added a poll in the right-hand column: would you back up business data to the cloud? The assumption here is: the cloud in this case is a public cloud or a service provider cloud--not your own private cloud. I haven't qualified this further with any questions about the size of organization you work for, what level of encryption or security you might want in order to be able to say "yes" or anything else of that nature. Basically, the question is: would you be willing to treat backup software as a service, and use somebody else's infrastructure at a different site to do your backup?
For anybody that wants to add some explanation to their answer, please feel free to comment to this post.
I am going to leave the other poll (deduplication ratios) up, as I am curious to see how the answer changes over time, or if it does. As of this post, 240 respondents have answered. About 2/3 of the respondents are from the US, and the results are: 22% say 5:1, 32% say 10:1, 29% say 20:1 and 18% say 50:1 . I will check the results again in 6 months or so.