Glyphboard
I'd forgotten to post about this the other day. Glyphboard for iPhone would be the equivalent of the invaluable Character Palette on the Mac.
Interesting how this web app can actually run offline on the iPhone or iPod touch and does not seem to invoke Safari. You hold a finger on a glyph to copy it to the text bar and copy it again from the text bar to use in your email, twitter or other text based app. Of course, this wouldn't work if you don't have OS 3.0 installed.
I heart Neven Mrgan.