Along with the iTunes update, iPhoto '09 users will also see an upgrade to 8.1.2 sitting in their Software Update right now -- namely to fix import and syncing issues with the iPhone, iPod and Apple TV. Canon printer and scanner users will also have the latest software for their products installed.
You can pick up the 12.9mb update right now in the Software Update app.
Windows users can also download Bonjour Print Services to discover and configure Bonjour-enabled printers using the Bonjour Printer Wizard.
Thanks to those who tipped us off!