When will the Motorola Xoom, ahem, justify its price point with a dose of Verizon's speedy LTE? According to an allegedly leaked Verizon document at Droid-Life, it seems we'll see it by the end of May. You can read the rest for yourself immediately above, but if you have an aversion to JPEG images we'll also spell out the salient points here: the upgrade will reportedly be completely free, including shipping; both hardware and software tweaks will be carried out by Motorola; and the whole process wil