If you're sharing the String address only between these two Activities, then the simplest way to do so is to send it as extra data using putExtra with the Intent, as described in the other answer.
However, if you're going to be using address in multiple Activities, and need it to be the same for all of them (in that if one Activity changes the address, it's changed for all), then you should consider using SharedPreferences.
String address = info.getAddress();
String prefName = "address";
SharedPreferences prefs;
prefs = getSharedPreferences(prefName, MODE_PRIVATE);
prefs.edit().putString(prefName, address).commit();
And to retrieve the data in any Activity:
SharedPreferences shared = getSharedPreferences(prefName, MODE_PRIVATE);
String address = shared.getString(prefName, null);
The 'null' is what will be assigned to address if there is no shared pref with the name "address", so you can test that value to make sure the pref already exists.