More trou­bles for the iPhone 4. Earlier there were reports of yel­low­ish spots on the oth­er­wise immac­u­late Retina Display (read Yellow Discoloration on iPhone 4 LCD for more info) and now this: Insanely Great Mac (IGM) has posted up a video show­ing the iPhone 4 drop­ping calls when the lower left cor­ner is touched. This is quite unfor­tu­nate for left-handers since the lower left cor­ner will undoubt­edly be touched when you’re hav­ing a non-FaceTime con­ver­sa­tion and hold­ing it to your ear. The rea­son for the dropped calls seems to be the left hand is con­nect­ing the two anten­nas. Remember the stain­less steel chas­sis is used as anten­nas and for some rea­son touch­ing that lower left cor­ner is inter­fer­ing with the antenna’s sig­nal sen­si­tiv­ity. Apple’s engi­neer­ing of the wire­less anten­nas into the stain­less steel frame and bezel of the iPhone 4 was quite smart and was billed as a “work of genius” by iFixit. This inge­nious design should have improved recep­tion and reli­a­bil­ity on AT&T’s network.

This, of course, is not a good sign since it forces us to use our right hands to make cel­lu­lar calls if we want our calls to con­tinue with­out drop­ping. Most right-handers shouldn’t be both­ered too much unless you need to jot down a note while talk­ing on the iPhone 4, or drink your cof­fee, or eat some­thing, or do any­thing with your right hand. Yes, I’m being sar­cas­tic: this is sim­ply ter­ri­ble! It also means the abil­ity to look at maps or run some other app while on a voice call, an AT&T advan­tage, becomes moot. For right-handers it is very dif­fi­cult to nav­i­gate the iPhone UI with your left pointy fin­ger, at least for me. Look on the bright side: this is a great excuse to inten­tion­ally drop calls if you need to.