New in version 0.7.
Virtaal provides TM suggestions from the Amagama Translation Memory server. Amagama contains translations of FOSS projects.
The plugin queries a web service over the Internet, and suggestions might therefore take a moment before they are displayed. Also keep in mind that your source text is sent unencrypted over the Internet, and therefore no confidential translation should be done using this plug-in.
Remember that the suggestions from the Amagama plugin come from a variety of sources, and might not be perfect for what you need. It is meant as a way to help you increase your productivity, but still needs your expertise.