Milestone PostGIS 2.0.0
2012-04-04: (2012-03-27) Trying to be realistic here. Since we release every Wednesday and next can't be final (beta be an RC :) ), earliest will be April 4th. 2012-03-31: Seems unlikely we'll have a release before end March. 2011-09-18: At code sprint it was decided that Feature freeze will happen mid-November 2011, then Alpha around December, Beta around January, release sometime mid to late February 2012 7/24/2011: Make that September / Octoberish still have GIST KNN stuff to incorporate and polishing of nd index to finish.
It's looking like Augustish I'm afraid -- refer to:
http://www.postgis.org/pipermail/postgis-devel/2011-April/012700.html