What is the latest PST version?
There are 2 different latest versions: one built with Dolphin Smalltalk (Dolphin v4.0), and one built with Squeak Smalltalk (Squeak v2.7). Development of the Dolphin version of the IDE is more up-to-date than that of the Squeak version. Both versions can be found at: www.pocketsmalltalk.com/pst-download.html. New users are encouraged to begin with the Dolphin version of the IDE. The latest Dolphin-PST version is 1.6a4. It runs only on Windows. The latest Squeak-PST version is 2.0a. It runs on all platforms supported by Squeak (Windows, Mac, Linux). Note that GEOS port for Nokia is broken from v1.6. It still works for v1.5 and v2.0a. The next release, probably called something like 2.0w (2.0 on Windows) will include small improvements and a LOT of changes to the VM. The VM is expected to be about 35% faster.