Grids are very cool technology, but it's amazing to see how different computing ideas are beginning to merge together.
The latest technology to get drawn into the grid space is virtualization. I've written about grids and virtualization technology before, but not necessarily in a deployment situation. Now it seems others are beginning to see the power of grids and virtual tech together, as demonstrated by this piece.
There's a good analysis of the main points by Greg Nawrocki.