ToTitleCase(), ToLower(), ToUpper() results

I was poking around the .NET framework yesterday and came across these three methods in the TextInfo class:

string text = "this is a test string";

System.Globalization.TextInfo info = new System.Globalization.CultureInfo("en-US", false).TextInfo;

// First letter of every word is capitalized.
System.Console.WriteLine(info.ToTitleCase(text));

// Lowercase all letters
// System.Console.WriteLine(info.ToLower(text));

// Uppercase all letters
// System.Console.WriteLine(info.ToUpper(text));

info = new System.Globalization.CultureInfo("de-DE", false).TextInfo;

System.Console.ReadLine();

Nice. :-)