From the US Department of Labor:

Labor Day, the first Monday in September, is a creation of the labor movement and is dedicated to the social and economic achievements of American workers. It constitutes a yearly national tribute to the contributions workers have made to the strength, prosperity, and well-being of our country.

Today is dedicated to the (American) worker, so relax and enjoy! Remember, to celebrate this day, we are offering a deeply discounted software package on five of the most popular software titles for Pocket PC.