Love this plugin and have in use v1.2.0 for a long time.
Update on new v1.2.1 not yet possible as I get fatal error - but no error description. Don't know what it is.
I deactivated, updated via FTP the new version, tried to activate again -- then fatal error... Switched back to v1.2.0.
I'm on WP 3.4.2, Multisite on PHP 5.3.16
Thanks, Dave :)