I just did right now. Yahoo! has a new look after all these years.
Yahoo!’s always been supreme in terms of page performance (fast page loads). You also have the option to revert to the old layout in the footer. Doing so effectively allows those users who would prefer the old layout (for bandwidth reasons, or simply like the old layout) to be in control of their Yahoo page. The positioning of the option is debatable however but I’m sure product must have its reasons.