A Blue Qube is the smallest usable component of the Desire 3D platform that can be used to address a specific technical challenge in your development process. They work with other qubes to provide more services and hence, the 'qube inside the qube inside the qube' metaphor.
But it is vast in its own right too, hence the blue color of the ocean. Each Qube will have multiple releases over its lifetime, delivering more and better functionality in that specific domain.
A number of Blue Qubes share a theme to make a larger Qube or a product that addresses all your development needs in a given area or theme.
All products or themes come together to make the MetaMagic Desire 3D platform.