C# will probably not follow the route of stagnation of Java for some more time, thanks to Mono too. I don't like that string interpolation syntax because it looks unsafe, and that design of tuples can be improved, but they are listening to programmes (even if they risk creating a mudball language): http://www.infoq.com/news/2009/12/Mono-CSharp-Ex
More on those tuples: http://tirania.org/blog/archive/2009/Dec-23.html Eventually it will be quite useful to have some very well designed multi-return support in D (like those tuples, but better). Bye, bearophile