Maybe you're the kind of person who needs an external display even on business trips. Or maybe you've got a non-touch PC, and getting a touchscreen monitor seems like the best way to jump on the Windows 8 train (you know, as opposed to replacing your PC altogether). Whoever you are, Lenovo's banking on there being more of you out there. The company just announced the ThinkVision LT1423p mobile monitor, a 13.3-inch display that weighs a shade under 1.6 pounds, making it light enough to potentially stuff in your carry-on. Once it ships sometime in Q2, you'l
