A week or two ago, Google began the first in what they are reporting to be a series of beta-level improvements to the service.
According to the blog post from Google, they are:
Advanced Segmentation, Custom Reports, a data export API (private beta), integrated reporting for AdSense publishers (private beta), multi-dimensional data visualizations called “Motion Charts,” and an updated user and administrative interface.
If you haven’t logged into your Analytics report in a few weeks, you should check it out.