We're stating a new project, but the current 2.x GXT will be not compatible with 3.x. So we want to start with 3.0.

Can I download somewhere the 3.0 beta?

I found a link, but it's asking for login. http://svn.sencha.com/svn/sencha/EXTGWT
This is premium users and/or sencha only?

When will it be released?

Thank you.