A few hours ago, Apple updated their site, then took down the revision an hour later. Looks like there will only be a $200 price break until the new PB rev. is coming out at MWSF.
Apple may have jumped the gun on the loan info. There may be a $200 dollar price drop but until we see it and no other changes/ or an update we'll not know for sure.
Note that's now 180 days and not 90 days! That means you can spread out your purchase over 6 months and not pay interest. Quite a deal...and it says: "limited time only!"