Google Offers Partial Refund for Nexus 7 Orders Placed Prior to Price Drop
Let's start with Google. If you purchased a 16GB Nexus 7 tablet within 15 days of the price drop, you qualify for Google's Price Protection plan. Put another way, if you bought the 16GB model on or after October 14, 2012, Google will refund the difference in price; all you have to do is fill out a form with your order number, item description, and purchase date.
For folks living in the U.K., Asus is also stepping up to the plate, albeit in the form a £25 coupon valid for purchases from its online store. Asus' offer doesn't appear to be tied to just the 16GB model, either. Full details can be found on Asus' website.