[gizmo]

I think this is pretty cool (and I like the slider-demo!), but it's clearly developed for laptops and mobile devices. On a bigger monitor the website is essentially unreadable. A 29px font for the body copy is a bit outrageous.

I like the idea, but I don't think fully automatic font scaling is the way to go. Mapping resolution to font size (which is essentially what the Javascript magic does) doesn't work because resolution doesn't mean much anymore. An HD tablet and a 27" monitor have the same resolution but demand completely different text sizes because you sit so much farther away from a desktop monitor.

So for the time being I think the best way to go is to create a mostly fluid layout and to write custom CSS for manual adjustments to make sure it looks good on smartphones, tablets, laptops and desktop monitors.