The Mercurial DSCCM tool has the ability to create, read and apply " bundles". Bundles are files containing compressed Mercurial changesets (including any binary content). Bundles are useful for transferring changesets between disconnected, or intermittently connected repositories.
Often, it's a good idea to inspect the bundle contents before unbundling. Mercurial treats a bundle as a repository in and of itself, and therefore it's possible to see the log entries in a bundle thusly:
hg -R ~/path/to_bundle.hg outgoing
When executed from within a working copy, the command will show a summary of the changesets contained within the bundle, but not contained in the working copy. | 
