Seems apple have accidentally leaked a small app called Dashcode. Basically it lets you create dashboard widgets with absolute minimal effort. I managed to create an RSS parsing widget for one of my sites in seconds after opening the app, which shows how simple it is. It feels un-polished though, as do most un-released applications, I'm hoping before (if?) it gets launched, there are a few different types of widgets added to the start up options. I've attached some screen-shots for all to enjoy.