Aquinas's Opera omnia are now available in an App for Android devices in an app (CTh It) published by Andrzej Nakonieczny OP.  The aim of the application is to provide students, scholars a tool for basic research on works of St. Thomas Aquinas, available offline (e. g. during seminars, lectures).  This application is a part of the CORPUS THOMISTICUM PROJECT.

Free download:

https://play.google.com/store/apps/details?id=anynet.sqlite.cth.latine

For more information about this app:

http://www.corpusthomisticum.org/eandroid.html