I just put K2 on my WordPress site. It basically lets WordPress worry about the backend: the post database, the commenting, yada yada yada…. And K2 handles the visual end-user presentation. It’s really powerful and extensible- full of yummy AJAX and stuff… So look forward to me messing with the live version of my site, screwing it up, making it inacessible, and finally really cool.
Webslinger