Perhaps because do not want to lose with GMail that is already so popular, at this time when you log in to Yahoo! Mail, there is a new feature.

Feature to send SMS and chat via YM directly from Yahoo! Mail. With this feature, member can do a lot of fun things, like: check mailbox and sort messages, check YM and MSN status, and send a short message (for the service are supported).

This feature is in new version Yahoo! Mail ( classic version waiting for some time again, maybe.)

For more information, you can check it through Yahoo official blog.