It looks like WordPress 2.1 is getting closer to being out the door… The WordPress Development blog just made a post to suggest the plugin authors check their code to make sure if it’s naughty or nice. Well, Upcoming Events is somewhere in between. I followed the instructions on WordPress’ site for creating tables in the database which said to use $table_prefix in order to get the configured prefix (wp_ by default). It seems, however, that I should actually be using $wpdb->prefix instead. Fortunately, $table_prefix is just depreciated, not eliminated so even version 0.1 of Upcoming Events is WordPress 2.1 ready. Upcoming Events 0.4, when it comes out, will use the shiny new $wpdb->prefix interface.
UPDATE 11-Dec-2006: I edited the WordPress wiki to reflect the fact that $wpdb->prefix is now the prefered method.