Today I updated eric.polerecky.com to 2.7-beta2 using the wordpress-automatic-upgrade plugin. Everything went smooth. Once the upgrade was complete I had to disable wordpress-automatic-upgrade because of some errors in the admin pages.
How to: edit wordpress-automatic-upgrade.php around line 2100 and change
$downloadURL = ‘http://wordpress.org/latest.zip’;
to
$downloadURL = ‘http://wordpress.org/wordpress-2.7-beta2.zip’;
