Rackspace’s cloud event resulted in a very significant announcement: the acquisition of Slicehost and Jungle Disk. There’s also an announced Limelight partnership (unknown at the moment what this means, as the two companies already have a relationship), and a Sonian partnership to offer email archiving to Rackspace’s Mailtrust hosted email business.

My gut reaction: Very interesting moves. Signals an intent to be much more aggressive in the cloud space than I think most people were expecting.