I would like it to list every built-in function like in (MySql), and make it searchable, with more real world examples. The problem I ran into lastnight is I was trying to load a ext JavaScript file, and I forgot the tutorial with the examples. I tried doing a search, and the result was kind of garbled, and hard to read. So I got fustrated and just rewrote the thing.
I all think your doing a wonderful job, and I bought the book as well!