Let's talk about Google Talk!

Alright, privacy issues aside; Google Talk's GUI design is very intuitive and nothing short of brilliant! The application allows you to circulate between your contacts using a keyboard shortcut (Ctrl+tab); you no longer have to go through the million browser windows open to get to another contact's window using the keyboard! Other than that the ability to stick chat windows to each other and to the primary window is amazing. You can pretty much arrange windows whichever way you like, check out the screenshots below. By double clicking on a contact's window, it would either open/close the chat window! If contact windows are minimized and stuck together, clicking on the person's name in the main window, will enlarge their window, clicking on another perosn's name will minimize the open one and enlarge the person you've clicked!