EduCause Australia 2011 also has a Mobile Website. Unlike an Apple iPhone or Android "App", this works on a range of "smart" devices (and on an ordinary desktop computer as well).
But like the mobile interface for WCC2010, the implementation is somewhat primitive. As an example, the icons on the main screen look too large on my desktop browser.
Also all the text on the page appears to have been provided in the images. So someone who can't see images (for example because they are blind) cannot use the interface. This would not appear to comply with mandatory accessibility requirements for Austrlaian web sites.