APPA Mundi recently worked with the Microsoft Surface team to put together a code sample showing the exchange of information from a Surface to a nearby Bluetooth enabled phone using standard protocols. This means that any phone which supports standard Object Exchange (OBEX) protocols can receive items from the Surface without installing any client software.
The sample code is available in the MSDN Code Gallery:-
http://code.msdn.microsoft.com/surfacebluetooth
This code sample is designed for use with the Microsoft Surface 1.0 SP1 SDK and makes use of the .NET Bluetooth library binary file available from http://32feet.codeplex.com. The sample code is provided "as-is" and is not supported. Alongside the standard functionality in 32feet.NET the sample illustrates using the notifications supported in the desktop Windows API and shows how to consume these from within a WPF application (the API uses native Windows messages).
In The Hand Ltd 