先日のEggsHamに続いて、アメリカのアマチュア無線の問題集
http://www.freeware-palm.com/s.php?querywords=palmve
PalmVE is a program designed to drill students studying for amateur radio written tests.
It includes support for all the elements (Technician, General and Extra).
It has numerous interesting features, including a built in figure viewer, one-handed testing on devices with a 5 way navigator, SD card support, and the ability to leave a test part way through and come back to it.