Escaping from Orkut
You can export Friends into a CSV file from the Manage Contacts module on the right hand side of your Friends page. Click the "Export contacts" button and a CSV file will download to your computer.
Photos cannot be exported in bulk from the interface at this time. If this is an important feature for you, please vote on this service on the Data Liberation Moderator page.
Escaping to Orkut
You can import friends from a CSV file or by using your GMail, Hotmail, rediff, @mail.ru, AIM or MSN accounts. Click on "Friend Finder" in the Manage Contacts second on the right hand side of the Friends page. See this help article for more details.
Information for Developers
Orkut supports the OpenSocial API. This can be used to retrieve photos and other data for you and your friends.