One of our clients was wrestling with getting WordPress events to display within their event calendar, and I finally had enough. We really just needed a simple WordPress widget that displays upcoming CiviCRM events.
A couple hours later, voila: the CiviEvent Widget plugin. It's really straightforward, but you can generate as many widgets as you like, control the title and number of events for each, and choose among two basic appearance options or theme it yourself.
Please let me know what you think, ideas for improving it, and any bugs or limitations you find.
If you're in the Mid-Atlantic and using CiviEvent and/or WordPress, you might consider coming to the CiviEvent training on October 17 or the WordPress CiviCRM Integration training on December 5, both at the AGH Strategies office in Washington, DC.