In case you haven’t heard this yet, Facebook is opening a new site, 0.facebook.com, a mobile-only site that can be accessed free of charge on certain carriers in certain countries. In case you are wondering what this is when Facebook is already free, it just means that you will not be charged by your phone carriers for the data if you are accessing Facebook through 0.facebook.com.
Unfortunately, as I said earlier, this service is only for certain carriers in certain countries. Here is a list of the supported carriers and countries (from TechCrunch):
I only have 250 MB data allowance per month on my current plan so I wish that the site is also available in Australia :(