From today's IIS News and Articles, just in case you missed it ...
" ... 4 Australians (Anthony Wesley, Zac Pujic, Maurice Valimberti and [Mike Salway] along with a few other amateur astronomers from around the world, have collaborated with a team led by Augstin Sánchez-Lavega in a paper that was published in the latest Nature Journal."
You can read the PDF version of the article here:
http://www.iceinspace.com.au/downloads/nature06533.pdf
Congratulations are due to Mike and the other authors! It must feel very good to have your names in this prestigious journal.