Thanks so much for the info
#3 is the way to go and cheap.
via the HoFo App
Great upgrade from my nexus 4 though :)
Yes and you got a 635 for your Mother and she loves it.
Now I came to Windows Phones as an absolute die hard Android girl and I just love Windows Phones. I have 5 of them in my cell phone...
I think you can swap them, as long as both phones are on 3G. I would think you should be able to do it through chat.