What is required for true cross platform development using .NET? On one hand, not much; on the other hand, a great deal. Because Rotor, Pnet, Mono and (the Microsoft implementation of) .NET, are all based on the ECMA standard, getting a basic C# program running on all four platforms is typically just a matter of copying the .exe file to the machine and executing it (assuming a .NET framework is already on the machine). But what about remoting, serializing and deserializing classes, interoperability, using native code, and non-ECMA classes such as System.Data and System.Windows.Forms (SWF)? This book covers those questions in detail with good practical advice; but that is not the best part of this book.