tonyq writes "Yahoo! is beginning beta testing of a completely reworked UI for Yahoo! Mail that incorporates DHTML technologies. The web-based application resembles a desktop e-mail client. Features include message preview; drag-and-drop filing; the capability of quickly searching e-mail headers, body text and attachments; and the ability to view multiple e-mails at the same time in separate windows and scroll through all message headers in a folder rather than one page at a time. Other niceties are auto-complete, right-click menus and standard keyboard shortcuts. A user who got an early look has graciously posted screenshots. Yahoo is also taking signups on their what's new for Mail page."