Did anyone else see this today?

"Yes, that's right, not only have we been John le Carréing it up in Moscow but our embassy chaps have been downloading classified material from a hi-tech rock planted in a Moscow street. More specifically, the TV programme claims the five ne'er-do-wells in question "downloaded classified data from a transmitter in the rock onto palm-top computers."

http://www.theregister.co.uk/2006/01/23/spying_rock/

I love it when truth is stranger than fiction! What could the secret rock-based info be?