Touchpad Keypads

Some articles on touchpad, touchpad keypads:

TI-Nspire Series - Handhelds - TI-Nspire Touchpad
... Instruments announced the new TI-Nspire Touchpad and TI-Nspire CAS Touchpad graphing calculators ... The keyboards on the touchpad keypads featured a different and less crowded key layout along with the touchpad, which is used for navigation ... The touchpad keypads are also compatible with older calculators that are running OS 2.0 or newer ...