The model changes its predecessor's trackball to an optical trackpad, with simple functionalities such as swiping the thumb to move it and press it to make a selection.
Critique was mainly aimed towards lower build quality and missing user interface together with a new style trackpad where the traditional thinkpad trackpoint functionality had been radically changed.
A specific example is using the trackpad to explore the actual visual layout of elements on the screen - sliding one's finger around the trackpad will activate elements.
The smartphone was commended for its design and most changes were favored, such as the trackpad.
The cover includes a trackpad that allows users to accept and reject calls without opening it.
It weighs four pounds and includes a radiance display, buttonless multi-touch trackpad, and solid-state drive.
No consistent term was used, and references varied, such as: glidepoint, touch sensitive input device, touchpad, trackpad, and pointing device.
From a physical standpoint the most major change was that the trackpad was changed to a clickpad and the dedicated buttons were removed.
