Yammer is a social networking service designed for use inside of a business. It looks and feels a lot like Facebook’s News Feed. Like Facebook you can use it from its web interface or a variety of clients including one for the iPhone. The previous release was designed for the iPhone’s display. In fact, in my testing on an iPad 1 and iPad 2, that version of Yammer crashed on launch on the iPad.

The latest release fixes the iPad crash-on-launch problem. The Yammer app is now a universal app that scales to the iPad’s larger display.

Yammer 4.0.0.141

Two other new aspects of this release are:

1. Threaded mode for iPhone
2. Higher resolution graphics