I was originally thinking of putting bead board on the front of my dishwasher, but I really like this idea too.
She simply used paintable wallpaper (that you can get at Home Depot) that looks like old ceiling tile.
She then painted it the same colour as her cabinets. Click HERE for her full post about the process.
I think this would look great as it would make my dishwasher the same colour as my cabinets and would match the 'tin tile' that I will be using for my back splash.
She did mention that she wasn't 100% sure if it would stay on (due to the steam/heat the dishwasher admits). So that is definitely something to consider.
A very inexpensive and easy way to give your dishwasher a new CLEAN look! :D