This is a business tablet and so it's built with features that are important to business users.
The ThinkPad runs Android 3 (Honeycomb) which is optimized for tablets and includes touch-based navigation for all the buttons. The ThinkPad also has hardware buttons.
Unlike most Android tablets, the ThinkPad Tablet also has the ability to work with an active digitizer pen. That was one of the most appealing features to me since I'm so accustomed to pen-based computing. You have to buy the Stylus pen separately and it uses the N-Trig Duo Sense so that you can use the pen and switch to touch-based input.
Here are a few other distinguishing features:
- Full-size USB port (you won't find this on any other Android tablet)
- SD card slot (instead of a micro SD card slot)
- Mini HDMI slot
- An optional keyboard folio case that includes a built-in pointer mouse (you won't find this on most tablets)