Alexa now shows geographical info on sites

I just saw that Alexa added geographic information on their website.
This means that you can now see what countries your visitors are coming from as well as see the relative alexa rank your site has by country.

For example, my blog is ranked 429,364 but in Israel it's rank is 44,870
See for yourself in the alexa report on Ohad's Internet News

Does this make Quantcast irrelevant? What other info can I get using Quantcast that I can't get from Alexa?