Owners of new Apple iPad owners are finding an unpleasant surprise that owners of 4G phones have known about for a while: 4G LTE networks are so smooth and speedy that it's easy to bust your monthly data cap within days. It's probably even easier to bust it on an iPad than on a phone, because the iPad's screen lends itself to video streaming and because Verizon's and AT&T's LTE networks are often faster than public Wi-Fi.