So you're Barnes & Noble and you have a successful product like the Nook -- what do you do? Trademark the heck out of the name, of course. As PocketNow has noted, the company's filed a number of Nook-related trademark applications over the past few months, which may offer some hints of future Nook hardware, software, or both. That unsurprisingly includes an application for "Nook2," which was first filed back in June, as well one for the name "Nook Smart" (possibly related to the existing Nook Study education platform?), and one for the impossibly catchy "Nook
