Let the hive mind of Engadget get that for you.
"As someone who doesn't reside in the USA, I was wondering what would be the best way to get internet for my computer in the US for a couple of weeks? If it were Europe I know I'd look for some prepaid data. Is there anything similar offered by American carriers? A MiFi or a data SIM that I can tether from would work, but I'm trying to maintain a tight budget. Help!"
So wait, was that Sony PR at work when they said rumble wasn't a very important feature?
Good luck to them, it's better to add it than not. But it seems dubious to do it after you launch, in terms of how you advertise how great rumble now is, and hopefully don't alienate early adopters at the same time.
I'm wondering if they should just stick to their guns and skip rumble for this generation. It's actually not that big of a deal IMO anyway.