The WordPress Functionality Plugin is included in the WP Starter theme, but why isn’t it in the WP repository anymore? Is it still relevant and up to date?
Everything that is available from the ST2 repository can be used without troubles with the ST2.
There is no more “functionnality plugin” but a ST2-Custom-Settings-Plugin that you can install/customize or not.
You can check the comments inside the file to see the different features activated when the plugin is in use.
I was still on Starter Theme 1.2 so I am starting again with ST2 and check it out.