Could the iPad finally get an upgrade to 4G? The Wall Street Journal thinks so. The website reported that both AT&T and Verizon will sell iPad 3 tablets with 4G LTE connectivity. Looking back, CNET reported as early as November that the iPad 3 will likely run Qualcomm's 4G LTE Gobi 4000 chip. Bloomberg's January report on the iPad 3 also cited sources that said 4G LTE capability is likely to make its way to the tablet, and Forbes was on board with this story, too. (We're curious to see how long the iPad 3 lasts on a charge with LTE on, as the technology certainly zapped the runtime of other 4G tablets like the Samsung Galaxy Tab 10.1 on Verizon.