Right now, corporations--my clients, anyway--big oil and gas, government bodies, are getting either a disc with their cheque scans on it, some of them or they're not receiving their cheques back at all or they are receiving photocopies, in which case the bank is destroying the actual cheque, transmitting the scan of the cheque, then reprinting the cheque on paper and sending that.
On April 19th, 2007. See this statement in context.