HTC may have unleashed a completely unique Android tablet with an active digitizer and stylus yesterday, but more are on the way. At least that's the word from N-Trig, the company responsible for the screen and pen technology in HTC's Flyer as well as other convertible tablet PCs. According to the company's VP of Business Development Lenny Englehardt, 7-, 9.7-, and 10-inch pen-equipped Android slates are coming in the next year from major manufacturers (sadly, he couldn't share which ones). We went over