Here comes another weekly update.
New Mobile Widget: Collapsible
We added a new qx.Mobile widget to the framework: a Collapsible. It is a simple but useful widget. It allows you to collapse the body of a composite. Especially for small-screen devices it is important to save as much layout space as possible. The collapsible consists of a Label, which represents the header, and a Composite for the content. The content’s visibility is toggled by a tap on the header.
See the widget in action at the Mobile Showcase. Have a look at its API description.
Bugfixes
For a complete list of tasks accomplished during the last working week, use this bugzilla query.
Hosting Ain’t Easy
Make sure not to miss a nice write-up of experiences about hosting open source projects on SourceForge and Allura

Is there something like that and for desktop?
No, there is nothing like that for the desktop but it should be very easy to implement yourself. All necessary parts are available like container and animation.