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!"
Why make the announcement now if it's not going to be out for another 6+ months?
By third quarter, I'm not going to care about either phones anyway.
This makes about as much sense as telling your kids what you got them six months before christmas/their birthdays.