Available right now online, you can once again make a purchase of $29.99 for one of Apple's many different colored bumper cases which should fix any annoyances you might have with the handset's signal reception. Upon looking closer to the bumper cases that are being shown off online, it's almost interesting to see that Apple is flaunting the white edition of the iPhone 4 – which in fact is still MIA to this day.
Nevertheless, you can make your purchase now online after being absent for quite some time during their free case giveaway period.
Apple iPhone 4 Specifications | Review
source: Apple via TUAW