"Array Visualizer is a free, open source extension for visual studio. It is designed to display 2D, 3D and 4D arrays while debugging an application.
"Array Visualizer Controls & VS Extension
Array Visualizer is a set of WPF and WinForms controls that enable visualization of 2D, 3D and 4D arrays.
The Visual Studio Extension is provided for easy integration with the VS 2010 IDE and enables visualization of arrays at debug time. The extension can downloaded directly from Visual Studio Gallery or from within VS 2010.
Additional WPF and WinForms projects are provided to illustrate the use of the Array Visualizer controls leveraging the LINQ style array extension from the Linq Extensions Library.
There's a number of cool things here, the visualizer itself, that the source for it is also available and coolest, that it's actually a control you can use yourself in your app's...