Good news? Looks like there really is a new "Home" option for iPhone activation in the US. Bad news? Looks like it has nothing to do with the iPhone being sold unlocked. Apple Insider, who broke the rumor, updates as follows:
In order to service these customers, a special home pre-qualification web site has been set up so that users can find if they are qualified by AT&T for a phone unit subsidy. Users can set up their account at home so that everything is ready to go when they make their iPhone 3G purchase at a retail store. The new "Home" option that retail employees are seeing on their EasyPay terminals is designed to allow them to use this home pre-qualification step to accelerate the transaction of a new iPhone 3G. That also indicates there is no impending potential for unlocked iPhone 3G sales in the US, although this is expected at some point.
Apple Insider is also sticking to the 32GB SKU, but maybe only after the holidays (though presumably that means short term, not, you know, any point after the holidays and into future months/years...)
Interesting! Can't wait to see how this one pans out!