It's possible. IIRC I downloaded the APK directly from the website using the browser on the tab, and installed it. I entered the phone no. and when I tried to activate it, it sent the code to the phone which I entered in the Tab, et voila! The only problem is that every once in a while it gets screwed up, and needs reinstalling (or force stop). One of the problems is that sometimes clicking on the app icon does nothing, but if you click on the new messages notification in the notification bar, it opens it up right away. Once we even got a message that it was to out of date, and therefore it stopped working. YMMV.