From Secrets of SharePoint – Tip of the Day
About to jump on a plane, but still have work to do on that proposal? Not a problem with SharePoint Workspace. Simply, go to the document library you are working on, click the Library tab in the Ribbon and then click the Sync to SharePoint Workspace button. After a few short moments, you’ll have a copy of every file in your document library that is available for reading and editing. You are then free to catch your flight and make revisions to that proposal in mid-air. When you have a connection to your SharePoint server again, SharePoint Workspace will automatically sync your changes back into the document on your server. It will also update your local copy with any changes other have made. SharePoint Workspace is a great way to work with files when you’re on the go.