Starting today, Google is no longer accepting new signups for the free version of Google Apps. The option to switch to this version will no longer be available in 30 days.
This change has no impact on customers who are already using the free version. They can continue to use Google Apps for free.
For more information:
http://googleenterprise.blogspot.com/2012/12/changes-to-google-apps-for-businesses.html
http://support.google.com/a/bin/answer.py?answer=2855120