Dubbed 'Antennagate' for its large scale media coverage, Apple eventually admitted to the issue and offered all iPhone 4 owners the chance to receive a free "bumper" case (which nullified the issue) or the option to hold out for a settlement.
This week, all class action suits have been settled, and users who never took the free bumper are now entitled to a $15 payout settlement.
Apple PR spokesperson Natalie Harrison said this (via Cnet): "This settlement relates to a small number of customers who indicated that they experienced antenna or reception issues with their iPhone 4 and didn't want to take advantage of a free case from Apple while it was being offered in 2010."
If you purchased an iPhone 4 at any point, including this week, you are entitled to the money.
There will be more info at www.iPhone4Settlement.com in the coming weeks.