hope 1.3 will be soon in the homebrew, we're migrating tomorrow to docker and all of our office is OSX. that is regarding new standard folder sharing feature.
Is this really cheaper and more effective than cleaning up your code base so that it doesn't require complete ownership of the host environment in order to run?
Normally what I've seen is, develop on OSX and then push to Heroku (Linux) / <infrastructure provider of choice, running a Linux VM>. Why then wouldn't the natural progression be, develop in boot2docker and push to <docker PASS of preference>?
But almost always the module or service that you work on relies on other services and datastores. boot2docker can help you pull down an entire stack to your workstation and not rely on connecting to an external network. You can essentially work on Airplane mode.
They probably like OS X as a workstation OS, and want to use Docker for the DevOps benefits that they gain from it. boot2docker is just a lightweight solution for running Docker locally.