I downloaded this app hoping that it would fix my wish of being able to switch between application windows with a hot key. When I couldn't find how I emailed the developer, who replyed within 5 minutes that it would be added, and also showed me a way of doing this within the finder, eliminating my need for his app! Thus I'm encouraging everyone to give WindowSwitch a try if it looks like it might be useful - and if there is any question you have or feature you want added do not hesitate to contact the developer. He has to be one of the most helpful I have ever worked with!