You can create linear gauges from columns or scatter charts with one single data value: http://jsfiddle.net/highcharts/9ybLv5je/.
Other examples:Peter commented
More examples of linear gauges here http://www.fusioncharts.com/explore/gauges/
If we added an option to pin the tooltip on click, we could easily add links inside it.
I’ve tried to modify Joe’s patch into a plugin so that it can run without modifying Highcharts itself. The result can be seen at http://jsfiddle.net/highcharts/c42Ms/.
I didn’t have time right now to check across browsers, but I’m open for suggestions for improvements.