It looks like Nokia Lumia 820 will receive a post-Portico update in Australia. Apparently major carrier Vodafone is currently testing a maintenance update, which will probably be available for download within the next few weeks.
As WMPoweruser points out, PR1.1 maintenance update may only bring a few bug fixes, tweaks and some improvements, though these have yet to be detailed.
No word on exactly when the carrier starts rolling out this maintenance update, but it migh... (read more)