* Download data to memory or directly to a file on disk(i)
* The ability to submit files on local drives as part of POST data, compatible with the HTML file input mechanism
* Easy access to request and response HTTP headers
* Ability for setting up progress delegates (NSProgressIndicators and UIProgressViews) to show information about download AND upload progress
* Progress delegates (NSProgressIndicators and UIProgressViews) to show information about download AND upload progress
* Auto-magic management of upload and download progress indicators for operation queues
* Basic authentication (username and password) support, credentials are automatically for the duration of a session, and can be stored for later in the Keychain.
* Basic + Digest authentication support, credentials are automatically for the duration of a session, and can be stored for later in the Keychain.
* Cookie support
* Based on NSOperation to make queuing requests and background operation easy