UPDATE: There's a new feed running via Yahoo! Pipes.
Sorry folks but I have to take the announcements feed down as I'm apparently violating the ASX website terms of use.
I was scraping the Company Announcements off the ASX website and yes, typically scraping is frowned upon, but I figured since I was linking back to them for the full announcement (PDF) there shouldn't be any problems. I thought it was pretty similar to linking to a news article by its headline for example. Silly me for trying to provide a useful service to ASX customers! :)
Anyway the feed is going down for now. I am planning to bring up another source for the announcements (one that is 100% legal :) and will 301 redirect the current URLs to the new location once its up. So if you keep your current feed URLs in your aggregator it should just magically come back to life at a future date.