uSync.ContentEdition is now part of uSync 3, see the uSync project for more details.
uSync.ContentEdition has been developed to compliment uSync, the database to disk and back tool for developers.
ContentEdition puts the content exports content to disk, and imports it too.
Content Edition Features
When you move content between Umbraco installations all the IDs change, uSync.ContentEdition handles this for you and maps the IDs to the new ids inside your install as part of any installation