Since no one realizes that Mozilla actually develops stuff in the open (vs. code/project-dumps like Google after its 'done'), here's the Mozilla project page for Hello (previously called Loop): https://wiki.mozilla.org/Loop A bunch of the hypothetical questions here on HN could be answered easily by skimming over this page and some of the pages linked in. Edit: I'm not suggesting its bad or good to get a project to a…
I don't have any problem with people making open source projects and then publishing them once they are finished. It's still open source.
If a company periodically dumps a large project tree online but continues the development and management behind closed doors, it makes it very difficult anyone else to make use of or build upon the source without forking it completely (and forking has its own risks).
This is why windlep is pointing out that Mozilla "develops in the open", as opposed to being merely open source.