FYI your Info page at:
http://www.swtor.com/support/helpcenter/2201
Says:
There are two types of Star Wars: The Old Republic Security Key available:
The Physical Security Key comes free with the Collector’s Edition of Star Wars: The Old Republic, and is available for purchase online, or through selected retail partners.
The Mobile Security Key is available for the iPhone, iPad, iPod Touch and certain Android and Blackberry devices.
I spent some time looking for the Android app after reading that, but now see it is not yet available.
Thanks.