This is a big change in their policy. The following app duplicates the mail app functionality while adding more features
http://appshopper.com/productivity/ibismail
and the following looks similar to the gmail app that was denied a few months ago
http://appshopper.com/utilities/gmate-mail-for-gmail
http://appshopper.com/productivity/ibismail
and the following looks similar to the gmail app that was denied a few months ago
http://appshopper.com/utilities/gmate-mail-for-gmail