This event might be of interest to somebody: Follow The Data Sydney
It’s an Open Data event, nothing about OpenStreetMap exactly, but probably great opportunity to go along and make people aware of OpenStreetMap.
“We are looking for 6 Sydney based Open Data advocates and developers to come to look at the data, play with app prototypes and tools that have been made, and demonstrate the value of open data within the industry. We want to generate noise about Open Data and represent local developer communities, tying in with the Global Conference”