Mosebro: mobile semantic browser for Android
lexandera.com
lexandera.com
But the point of the examples is that all sorts of actions can be attached to semantically marked up data. Those actions could just as easily export data to a vcal file, or do something less obvious, like list people you know who live near that location, or list people who are also planning to attend an event, etc.
I guess the demo does need quite a bit of work. Things should be more clear when multiple (as well as user-installable) smartlinks/actions will be supported on each semantically marked up item.