Re: "We all want to see hard proof of espionage. This is absolutely not it"
.. and to be honest, it's more fun. At least to me it is.
I like the challenge of integrating all these different systems and platforms, which basically is what the Internet originally did. Have an iPhone access a PDP-11? Weird as it may be, it is quite possible that someone has done it, just because he could.
Yes, at some point you have to modernise because maintaining the join is also expensive and it may simply be more cost effective to rip & replace, but that just gets you new things to glue together :).