tedster - 5:48 pm on Dec 3, 2011 (gmt 0)
It's a kind of "rich snippet". In addition to the text parts, with a software application you also have the possibility of seeing the dedicated icon in the SERP - if you mark up the icon image with special syntax from the schema.org vocabulary.
The text parts of the snippet also depend on the mark-up you use, by the way. See Google Rich Snippet Help [google.com] for more details.
Google has been rolling out rich snippets in a graduated fashion, and just recently we're seeing a wider use of this kind of extended information.