If you thought laptop / tablet mashups were trendy, we can think of at least one other theme you're going to see repeated ad nauseam over the coming months: PC makers putting touchscreens on things that didn't used to have them. That's right, in addition to all those funky-looking hybrids, you're going to see lots of familiar-looking laptops get upgraded with touch in time for the Windows 8 launch. Exhibit A: HP, which just announced two conventional notebooks with touch. This includes a finger-friendly version of the 14-inch Envy 4 Ultrabook, as well as the Spectre XT TouchSmart Ultrabook, a 15-inch version of the
