A live post filtering plugin. Choose which categories to show in the filter and watch the post show/hide without reloading.
Some minor clean up. - Instead of listing the filters using wp_list_categories, the categories are now manually printed with the href being the slug of the category. - Fixed some jQuery issues - On load, the selected filter (if any) gets assigned the class "current" - Created a demo page: http://gobanana.ca/wp-filters/wp-filters-demo