Pocket dictionary was (still?) an interesting hackable device in Japan until around 2012. Some uses Windows CE/Linux and can run full Linux desktop by hacking.

Pocket dictionary was (still?) an interesting hackable device in Japan until around 2012. Some uses Windows CE/Linux and can run full Linux desktop by hacking. So some students uses it for general purpose at school. The only electric device that teachers don't mind, and portable device was rare at that time (like PSP), and even have a keyboard.