Will it be impossible to walk into any of these stores tomorrow (apple,att&t,verizon,sprint,radioshack,bextbuy etc) and buy a case and one of those lightning cables? Most of these stores will have plenty of stock in this category right? I pre ordered and will have mine tomorrow. I guess the benefit is that i have each one of those stores all 10 mins from me. I just don't know how well stocked they will be. Any help would be greatly appreciated.