This seems to be the result of a possible dispute with his employer AOL over the P2P-software "WASTE", which was released by Justin a few days ago on the Nullsoft website and then taken down one day later. All that is left on the former download page is a notice that the software was posted without authorization. WASTE allowed encrypted instant messaging, group chats and file-sharing and was published with complete source code. Justin explains in his .plan that his freedom of expression -- which he claims to do best through coding -- is being constrained by his employer and that it is time to do something different.
Good. Maybe he an turn out some good software without being constrained. Meanwhile - I've got a copy of the Waste sourcecode MUahahaha.