Here's something to add to your long list of webOS-related rumors: OfficeMax may be getting the HP TouchPad this July. If the above document is to be believed, HP's new 9.7-inch tablet will be available at the retailer on July 17th in both 3G and 4G versions -- which is a bit puzzling, considering the company hasn't made any mention of WiMAX or LTE compatibility. As for that earlier Walmart gossip, another tipster provided PreCentral with a screenshot of the big box's database (after the break), which cor