Apple nixed the "Compact" view as Safari's default with today's release candidate and instead opted to reinstitute a more traditional tab design seen in past operating systems.

Google Chat now has a compact mode with wider bubbles and padding, making it easier to view more conversations. Users can switch between the new compact mode and a more traditional view for Chat ...

Microsoft is testing a new "compact view" in the Bing search results interface. It is a toggle you can turn on and off that makes the search results page, um, more compact.