> Another solution would be to use a replicator. The advantage is that you
> don't have to modify your application in any way. You just make it work
> offline, and have the replicator kick in every minute or so to
> synchronize. It can be a bit difficult to set up, but the result is
> definitely satisfactory, as per my own experience.

And you can still use a TCP/IP tunnel with this, to encrypt/compress data.

Artur