Panic is shipping a new app for Mac users, Unison. Unison is a utility designed as a Usenet newsreader management solution. The app features support for multiple signatures and a four-view interface for browsing anywhere from MP3s to digital images. According to Panic:

After many months of top-secret development, and one surprising but still-kind-of-cool-in-a-frustrating-way rumor site leak (our first!), weire very excited to announce a brand new Panic major application: Unison!

Unison is a carefully-crafted, genuinely revolutionary Mac OS X Usenet newsreader. It offers all the expected newsreader functionality: easy-to-navigate threaded discussions, the ability to ignore annoying posters, multiple signature management, and easy, Mail-like posting with spell checking and all the trimmings.

But it also goes much, much further than any other Usenet client on earth, starting with a unique four-view interface that lets you view and work with Usenet group content in four distinct styles: messages, files, images, or music. It lets you preview MP3 files directly off a Usenet server, view images in an elegant iPhoto-like thumbnail view, prioritize transfers with a flexible downloads manager, find favorites quickly with a categorized column-view interface, smartly group files into meta-groups (like songs into albums), show download status beautifully in the dock, and much more. Phew!

You can find more information about the Unison release at the Panic Web site. Unison is available for US$24.95.