Hi,
in wiki/WikiNewPage of our Trac 1.4.2 there is written:
"by typing the
CamelCase name of the page in the quick-search field at the top of the page"
I never tried it that way, however, it does not work. I always create new Wikis by link. But on the quick-search, there is no button or link on non existing CamelCase Wiki names.
Best regards.