In the meantime i've noticed, there's an
Intensity map, which may be a workaround for what i need, but without labels on countries the map loses its informational value.
Just look at number and size of countries in Europe - there's almost impossible to distinguish each country when the map is not large enough.
Even if citizen distiguish its own country on the map, getting the real value (population e.g.) of the country is only guessing according to the color hue.
I'll probably do similar workaround, but with
geo map and some tabs above the map (for switching between metrics).
It's a bit pitty, that new
Geochart (in SVG) is actually in "beta" and is a bit slow when showing labels over countries (even in last dev build of Chrome).
I would be happy to use open technologies, like SVG, but this is now unusable.
I guess you guys are working hard on that to make it better and i'm looking forward, when this will be ready to use on production.
Anyway all mentioned workarounds let me display only one metrics on the map, no more, so the user cannot easily compare more metrics on one map.