He’s running Android Donut on a TI nSpire CX graphing calculator. Unlike just about every other TI calculator, homebrew developers are locked out of the nSpire CX and CX CAS. Without the ability ...

德州仪器（Texas Instruments）TI-Nspire CX II 彩屏中英文编程图形计算器，功能强大适用于考试和计算机科学课程。彩色显示屏直观展示数学公式、图表和 ...

The Nspire thread linked above discusses the DMCA ... you check back regularly before the take-down order comes in from TI.