I think by now, most iPhone 4 users know that the new phone has a boo boo. And by "boo boo" we mean a huge flaw in its antenna design, now external to boost signal strength (oh the irony). What better way to fix this ouchie than with an Antenn Aid ($5/6-pack). More stylish than using duct tape or electrical tape solution, these custom-sized vinyl sticker can improve signal performance when placed over the lower left corner of the antenna.