It seems that the personal journals of Phillip K. Dick are going to be published starting next year (2011) by Houghton Mifflin Harcourt. The two volumes are titled The Exegesis of Phillip K. Dick, and are being edited by Jonathan Lethem and Pamela Jackson. There's a bunch more detail at the publisher's publicity release, linked here: http://www.hmhco.com/news/20100428c_news_release.html.