As you already know, the SL Toolkit team has recently released the update to the Silverlight for Windows Phone Toolkit. This update includes a few controls that I developed in order to fill up the gap – ListPicker and PickerBox controls. So I would recommend to the people who have been using my versions in their applications to migrate to the officially supported controls.
The SL Toolkit team has taken a differrent approach when creating these controls by creating a single control (ListPicker) that will work for both scenarios. This control incorporates ability to set the header and provide your templates for the list items when shown in the “full mode”, supports change orientation etc… Overal I think the migration to the toolkit version of the controls should be pretty painless.