Comment 1 for bug 697310

It's not feasible for a commit to complete immediately for a bound branch, because a bound branch is defined to have successfully updated the remote branch before a commit succeeds.

For non-bound branches, though, a background push automatically after commit would certainly be interesting. It would, however, include the possibility of such a push failing. Still, that shouldn't happen too often, so the idea of 'bzr push' optionally backgrounding itself after write-locking the destination is certainly a very interesting one :-)