* Mark E. Shoulson
|
| I note that Shavian is there, but Visible Speech isn't.

The artificial scripts section is admittedly somewhat spotty. The
phonetics part is even worse.

| Nor Blissymbolics.

Yep.

| Does the IPA count as a writing system, or is it just an extended
| form of Latin?

I'd consider it a phonetic writing system, like Dania. (Whether it
should count or not depends what you want to count. :)

| And the International Teaching Alphabet? And Unifon?

Dunno.

| We have Rongorongo, but not the Phaistos disk inscription. Does
| that count as a writing system?

It's not clear that it is one, and almost nothing is known about it,
so I've preferred to leave it out.

| The question is probably no easier to resolve than how many angels
| can dance on the head of a pin, but I suppose any list is a start.

What's really needed is some definition of what it is that's being
counted. Given that it's possible to produce a matching list.

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