If you regularly travel with devices with open ports, dust and fluff will get into the ports. One day that will cause a problem. If you carry your iphone in your jeans pocket a lot, go get a wooden cocktail stick and dig out the gunk in your port. Now imagine a small metal sliver gets lodged in one of those ports... this **** happens, and as someone who traveled a lot with my MBPs I would have liked this option, and I'd love idevice solutions too...