Earlier this year the .NET Compact Framework team announced that there was going to be an implementation of WCF for Window Mobile devices. In addition to the regular http binding they were going to put some work into an email binding that would take advantage of Direct Push and Exchange 2007 capabilities.
Today I was reminded of a great RFC entitled “A Standard for the Transmission of IP Datagrams on Avian Carriers”. I think this RFC was ahead of its time as it even includes discussion on prioritisation and worm detection. All I can say I can’t imagine synchronising my offline database using Microsoft Sync Services via WCF over Carrier Pigeons!