GA-API v2 & Updated Query Explorer Tool

[Nick]

Hi Everybody,

By now you've probably heard we've released a new version of our
export API. Details are in the changelog here:
http://code.google.com/apis/analytics/docs/gdata/changelog.html

We've also updated the Query Explorer to support the new segment
parameter as well as the updated dimensions and metrics.

Cheers,
-Nick