Turns out that aside from the reception issues, the iPhone 4 might suffer from some discoloration on the screen. According to reports, more than twenty folks with the new iPhone 4 have noticed that there is a yellow discolored area on the screen, or an overall yellow hue to the display, even after fiddling with the phone’s display settings. Affected users have confirmed that Apple has offered to replace the phone, but you can be sure having a display issue with a spanking new iPhone 4 will be disappointing to many folks. It’s also worth noting that this isn’t the first time that Apple has had to deal with display issues, as the 27-inch iMacs that began shipping in early 2010 had yellowed or flickering displays.