I have a tx2510us. I can use my fingers to select things and all that, although its more of a fingertip then finger pad. With the one you linked ( tx2z) IIRC its multitouch so you can use multiple fingers.
That being siad, the TX line has a long history of having massive heat output, so beware of that. I don't even need a space heater in my room anymore. Kidding, but just be aware that it may not always be a lap suitable laptop.