How can I change Yahoo! Mail into Yahoo! Mail Beta?

just go to whats new section of yahoo mail and register your e-mail address than after some days they will send u a mail to activate ur yahoo beta

Hi there! We are humbled by your interest in the new Yahoo! Mail Beta.

This beta version will be rolling out gradually and by providing us with your information below, you will be alerted when it is your turn. Thanks for your support - we'll be in touch soon.

http://surveylink.yahoo.com/wix/p0473306.aspx

If you signedup with the above link you will receive the following message.

Thanks! We'll keep you posted.

You are now 100% officially on the waiting list for our new Yahoo! Mail Beta. No specific dates are nailed down, but we'll be in touch the second it's available to you.

Oh, and sorry to tease you more, but here's what some of the press have said recently about the new Yahoo! Mail Beta:

"It's quite a shock to log on for the first time and see what appears to be an entire desktop mail application shoved into a browser window."

PC Magazine

"Graceful, swift and respectful of your privacy."

CNET

"The new version is radically easier to use."

Walt Mossberg, Wall Street Journal

In a nutshell, the new Yahoo! Mail Beta gives you a faster, simpler, and more-efficient way to view your email. We're sure you'll love it too.

Long term regular users were given invitations somewhat like how gmail originally set up there accounts. The beta mail just emulates an environment similar to Outlook, so if you are familiar to Outlook it isn't that confusing, but I tried it and decided I preferred the Yahoo interface

They tell you in their home page; quite easy to download but you don't have to accept it permanently first.

I tried it and did not like it at all...

Bit similar to Gmail but I like this one. For some reason, Yahoo Beta Mail looks like a mess on my screen..too small and confusing.

If something isn't broke, don't fix it.I like regular Yahoo mail, just like it is.

You don't want to, I got it..... it is so confusing

you can but its confusing