For one thing, it has about a hundred ™ symbols. Maybe lawyers are an untapped market for containers. It's also propping up Pivotal's fork of Docker that doesn't get much love.
wat
https://github.com/docker/docker/commit/a27b4b8cb8e838d03a99...
Jan 18, 2013
https://github.com/cloudfoundry-incubator/garden/commit/9c79...
Dec 6, 2011