History
First few versions of Plone Skin Dump did not take into account any of custom portal settings. So if you did some changes like portlets add/move/replacement, changed navigation settings - the resulting Plone skin product did not do those changes on user side when installed, to fulfill this you need to add additional code manually to the resulting product. It is usual for a developer, but it is quite problematic for a designer. Therefore we wanted to add new features to the qPloneSkinDump to simplify work for a designer. Most claimed thing was ability to manage portlets. This feature was added to the product.
After Plone 2.1 release one more problem arose. Plone 2.1 has a great tools for a Plone designer - CSS and JavaScript registries that is a great step forward from the designer's point of view and we decided to add additional functionality to the qPloneSkinDump to incorporate management of registries in a new version of the product.
It is quite often there is a need to transfer some Plone folders, documents, another content-types as a part of the skin. For example you created a document with some static text and created a static portlet to show the text of the document in it. User can change the document through the Plone and this document is a part of the skin... Starting from the version 0.7 Skin Dump can export/import any content you created locally. When user installs generated skin product all needed content will be created upon installation.