I assume that the Keyring font is included so that users can
more easily distinguish between characters that look similar
or identical to each other. This is less of a problem on
devices with high-resolution screens, but I still use it to
distinguish between uppercase-i and lowercase-L.
However, while it is functional, it was designed for low-
resolution screens, and looks rather blocky on my Treo
650's screen. It would be great to have an attractive, hi-res
version of the font instead.