WireframeSketcher is a software tool that helps product managers, designers, and developers quickly create wireframes, mockups, and prototypes for desktop, Web, and mobile applications. Itís a standalone application and a plug-in for any Eclipse IDE.
The biggest change in this release is support for SVG images. Other changes include a label rotation property and Mockups Gallery integration.
URL: Rapid wireframing tool, for teams - WireframeSketcher