With the help of a small javascipt you should add in some of your webpage, user screen size and color depth are available.

Experimental support for heatmap is available when adding a piece of javascript into your webpage. Sadly, it doesn't work very well with floating pages. Any help welcome.

Pages where javascript have been inserted will be display with the different screensize being used.

Thanks to maxmind, a city database can be used to get locate user's coordonnate. You'll need to install first the GeoIP library and the GeoIPCity plug-in from maxmind. The free version is not as accurate as the commercial one but it can help.