I'm a WP developer - just today, I started thinking that I'm getting tired of WP magic - magic that reads php comments, makes it so that you can't connect to a custom database without messing up $wpdb, and generally does things you don't expect. It's the best thing out there that I know of, but there's room for improvement.
I consider 2010 the year of site clones and affiliates. You can also say horrible google results peaked then, and I wonder how much of it attributes to the use of apps such as wordpress. Perhaps with the decline of a clear revenue slice less people are visiting these sites.