[charleski]

Adobe Digital Editions is notorious for its limited character support.
It would be interesting if someone with a new iPad could download the attached epub and see how much of the unicode space is supported by iBooks. It doesn't have an embedded font, so any characters that show up are native to the iPad.

The code tables have been shamelessly ripped from Wikipedia and include the bulk of the unicode set apart from Canadian aboriginal syllabics, CJK and Yi. I'd be surprised if the iPad renders everything, but would be interested to know if there are any blocks where the iPad is missing a lot of characters.