PTP 1.0 was released in March 2006. This is the original release plan.
Eclipse.org Release Review for 1.0 was held on 15 Aug 2006, and we passed with flying colors.
PTP 1.1 was released in March 2007. This is the original release plan. The release review for 1.1 was held on March 9, 2007. Slides used for the review can be found here.
PTP 2.0 will be be released in Fall 2007. The exact date is yet to be determined. This release will include some significant new functionality.