Yahoo buys Zimbra for $ 350 million
Zimbra is Yahoo!’s next investment, an open source web-based email service and one of the Top 5 Innovations of the Year in the industry.
Zimbra developers have demonstrated a code that allows users to view mail, calendar and RSS feeds even when they are not connected to the Web.
Apparently, Yahoo! tries to keep up with Google, which in turn promotes Google Gears technology, which allows you to work with web services while offline.