People who is good in english what does this short paragraph mean?

[achildlikeprincess]

Unlimited access applies if accessed in Australia via the mobile web sites (m.facebook.com), (m.foursquare.com), (m.twitter.com), (m.linkedin.com) or (m.myspace.com),Vodafone Central or official applications for compatible handsets from those sites using the Vodafone Live access point (APN). Standard data charges will apply for any external links accessed via the Sites. Subject to handset capability. Facebook® is a trademark of Facebook Inc.


So can I download the application if the application wasn't already on there?
At the bottom of the facebook page I accessed through

m.facebook.com

says download facebook for your blackberry

can i download it or will it cost money?

[Pierre]

Yes, you can download the app. But it will cost you data charges if you don't get it via the mobile websites listed (or if you are not in Australia).