I disagree because Rackspace is the most logical disaster recovery (DR) solution for companies that primarily use AWS. Even if you have DR backups in other AWS

I disagree because Rackspace is the most logical disaster recovery (DR) solution for companies that primarily use AWS. Even if you have DR backups in other AWS data centers, you're not protected from bugs that could affect all data centers. I've seen this happen with Windows Azure, and it could happen to any cloud provider. Therefor, very conservative enterprises will want a second cloud provider and Rackspace complements AWS nicely. Considering that the most conservative firms are the last to adopt the cloud, I think this kind of consideration will gain traction and drive business to Rackspace.