I guess that most of you have already heard about Anders Hejlsberg introduction to the future of C#, taken place at PDC 2008. One of the core features introduced in C# 4.0 is called Dynamic Lookup which allows a unified approach to invoking things dynamically. Currently, when you call object methods or properties, the compiler checks that they exist and raises an error if they do not. With dynamic lookup, you can call any method or property, and they are not checked until runtime. C# 4.0 is extending towards the dynamic languages. Having an object, you do not need to worry about whether it comes from COM, Python, JavaScript or reflection, you just apply operations to it and leave it to the runtime to figure out what exactly those operations mean.