Dual Mouse System
The IBM lenovo Thinkpad t40 series includes both a pointing stick and a touchpad centered in the wrist rest. There are four mouse buttons: two below the spacebar  and two below the touchpad.
The Track Point navigation featuring a pointing stick, touchpad and multiple mouse buttons lets you choose your favorite way to navigate the cursor on the screen.  The pointing stick makes it easy to get the cursor where you want it to go on the screen. when combined with the scroll button (located between the two upper mouse buttons) you can scroll through web pages and long documents with ease.  Just hold down the scroll button and push the pointing stick up or down to scroll to where you want on a page

Can stop a coffee spill from becoming a disaster
A simple accident with a cup of coffee could spell disaster for an ordinary notebook. But ThinkPad notebook keyboards are sealed and sit in a tray, so liquids are less likely to get through to damage the system.

Discreet illumination for every ThinkPad notebook keyboard
Situated on the top edge of the display, this integrated light illuminates the keyboard on any ThinkPad notebook. It’s ideal for catching up on work in a dark environment without disturbing those around you.

Connect to any accessible network, automatically
Enjoy the freedom of working remotely with Access Connections  a single interface that can switch easily between wired and wireless networks at home, in the office or on the road.