Something similar is already in it:
just add <arguments><arg>pagetoload</arg></arguments>
to the meta.xml file in the apps/wiibrowser/.
"pagetoload" can be:
a page url (e.g "http://www.google.it/")
"homepage" to load the homepage
"bookmark_x" to load the x-th favorite (e.g "bookmark_4")
Sorry no known way to do this, only (in the future) flash videos (i.e youtube..)
But I'm talking about loading multiple instances of the browser, probably through some kind of homebrew loader mod, each having different settings. How could we do this?