I was wondering the same thing. From the actual website: "Atlas is a development tool for building Cappuccino applications. In addition to managing your proje

I was wondering the same thing. From the actual website: "Atlas is a development tool for building Cappuccino applications. In addition to managing your project files and editing code, it includes a powerful visual layout tool for designing your interfaces without ever having to touch code. Designers are empowered to interact with their designs instantly, which means programmers get to finished applications faster."