ZF-12318: Zend_Service_Rackspace doesn't use ServiceNet
ServiceNet is Rackspace's term for their internal cloud network. Unlike traffic going through the public internet, bandwidth on this network - say between a web server and cloudfiles - is not charged.
Zend_Service_Rackspace_Abstract does not provide any way for the developer to say they want to use ServiceNet, so all traffic will be charged. There should be a setUseServiceNet() method or similar.