We came up with the name as a take on the word Igloo because it is made of large building blocks which represent the steps of understanding in our framework. As you complete each step you build your understanding of the concepts that underpin digital mapping (desktop and web based). Also an igloo is sort of shaped like a globe, and this project is about geography and digital mapping so we wanted to incorporate a globe into the design.
As part of the frame work we are developing a tool to support new learners : for more information have a look at the post : an IIGLU is born.
Hope you like it!