I was checking the database scheme (not sure if this is up to date: dev.piwik.org/trac/browser/trunk/misc/db-schema.png) and while I was doing so I was asking myself why every tool has the resolution of the screen, but never the viewport of the browser.
As far as I know this is not too difficult to get.
From a usability point of view, the viewport is much more relevant, as it tells us basically, what the browser displays of the website without scrolling. Because the bigger the screens (and thus resolutions) are getting, less can we expect the users to use the browser in full screen.
So I would like to ask to add this feature, if possible. I don’t see a major problem of adding it (I might be wrong) and it gives us at least as much information as the resolution of the screen does.