* Basic, Digest + NTLM authentication support, credentials are automatically re-used for the duration of a session, and can be stored for later in the Keychain.
* Cookie support
* GZIP support for response data AND request bodies
* [NEW] Experimental support for Amazon S3
* [NEW] Supports manual and autodetected proxies, authenticating proxies, and PAC file autoconfiguration
* Persistent connections support
* Support for Amazon S3
* [NEW] Full support for Rackspace Cloud Files
* Supports manual and autodetected proxies, authenticating proxies, and PAC file autoconfiguration
* Based on NSOperation to make queuing requests and background operation easy