Did you guys activate the swiftkey feature. I saw a youtube video showing what option you had to check on in order to activate the swiftkey keyboard.
It's the continuous input option in the menu screen.
I'd post the link to the youtube video, but my account is too new. Youtube s4 keyboard, and it was the first video that popped up for me.
Hope that this is the reason you swiftkey isn't working, cause when I get the phone that is the first thing I want to add, and I was stoked to hear it came with the phone.