Subterranean Press recently announced they will be publishing two PKD titles that that have long been beyond the means of Dick-heads in the higher numbered conapts. PKD's young adult SF book Nick and the Glimmung and Ubik: The Screenplay are due to hit the market sometime in the future. Subterranean is still selecting an artist to do the cover art for Nick and the Glimmung, so it's bound to be awhile before we get to see these two.
Currently, copies of Nick and the Glimmung are going for 55$ on amazon. Ubik: The Screenplay starts at about $175.
In Pink Beam, Lord RC describes the story as SF and gives Glimmung four stars, calling it a "charming and sometimes funny story about a boy and his cat..." Interesting to note: SMLA received Dick's manuscript for Glimmung, the same day they received his manuscript for Ubik.