This would solve soooo many problems.
I've really like to have a site with 1 really wide sidebar, big enough for really wide graphic ads, like 330 px.
BUT, I also want to display blogrolls and other test-only lists in narrower formats
The perfect thing would be a php-capable text widget that lets you separate content into different columns.
That way, I could run the one wide sidebar with a wide ad at the top, then a second widget showing a blogroll in one column and maybe my archive and categories in the other.
Does such a widget exist? Can one be created?