Beagle
What is this?
One of the biggest problems with user interfaces for desktops, tablets, and phones is that they are inconsistently designed, which is not great for user experience. Beagle is an attempt to rectify the problem, taking inspiration from some of the best existing interfaces and remixing them into something that just works.
Darwin is the free, open source operating system upon which the various Apple systems are based. Unlike the various distributions of Linux and Unix which are free and open source, Darwin lacks a solid user interface that it can call its own. Most importantly, however, is that the name Beagle makes no sense unless coupled with Darwin.