3. P-45 is the oldest model of power armor, notable for its slow ground speed and poor sensor array, but little Bean already intuits that the aesthetics of a machine are as important as its functionality.

4. The RoanCo Pocket Pal was about the size of a brick, and would only fit in the most capacious of pockets. Nonetheless, its sturdiness, long battery life, unrestricted selection of applications, and its complete inability to make or receive phone calls made it extremely popular in pre-apocalypse Equestria. However, it lacked megaspell shielding—an understandable design loophole in a civilian device—leaving most surviving Pocket Pals found in the wasteland useful only as paperweights. The RoanCo Pipbuck, though manufactured in limited numbers and sold only to StableTec and the military, is now more common.

5. Flim and Flam's plans for StableTec required constant surveillance of all stable inhabitants, together with privacy-nullifying levels of data collection. They struggled for a long time with the issue of how to get ponies to accept being monitored. At last, they realized that if the surveillance and data collection were attached to a cool enough toy, ponies would not only accept the intrusion but welcome it. The reader can consider themselves both wise and fortunate that they have not been tricked into carrying a similar device with them at all times.