An email this morning from Juan-Jose Marcos, the developer of the Alphabetum font. It seems that he keeps the font under development, for the email announces an upgrade. Unicode 5.2 includes a couple more obscure Coptic characters, and since I registered the font, he’s sending me the upgrade.
He also points me to an improved Charmap utility, named Babelmap. It’s freeware. I haven’t tried it, but Charmap is quite underpowered.