This plugin is being developed for a specific client need. I will probably enhance it further for public release after I've beaten on it enough to know that it's stable and ready for prime time.
The purpose of the Category Columns plugin is to display blog category names in multiple columns. This handles cases where someone wishes to display a list of their categories in a wider format, as opposed to the standard single-column list or dropdown. At the moment, the display is two columns, however, I plan to make that an option for up to 4 columns.
In addition, I plan to provide a means to pass in the desired parameters for the wp_list_categories() template tag so that the user can tailor the display to a certain degree. For now, the default parameters return just the link code for each category.