object storage

Is the Dovecot Object Storage plugin still available for purchase?

Clicking the store link [2] from this page [1] does not show any info about purchasing the plugin.

[1] http://www.dovecot.fi/dovecot-object-storage-plugins-available-for-online-pu... [2] http://shop.dovecot.fi/

Regards, Bradley Giesbrecht (pixilla)