Arstechnica: By now, most iTunes users have already downloaded and installed iTunes 10. We've already given you the low-down on the biggest addition to the new version of iTunes—the Ping social network—but we also wanted to give our impressions on two "improvements" promised in the release notes: look-and-feel and performance. While we agree that iTunes is "faster and more responsive," we're not sold on the revised user interface. (iTunes 10, Software)