From the outside, the new Lenovo T400s touch doesn't look all that exciting -- unless you're the sort to get excited over ThinkPads, in which case you're probably quite stoked that it looks exactly like the non-touch T400s. But it's actually a pretty crazy product -- it's a regular laptop with a high-end four-finger capacitive touchscreen. Not a tablet, not a convertible, just a laptop. And a ThinkPad, so you've already got both a touchpad and a TrackPoint to get around. It's a little puzzling until you use it, and realize that just casually reaching out and touching the display sort of makes a lot of sense. Sort of -- there aren't a lot of apps tha