Having recently purchased in an Xbox 360 I was disappointed to find out there was no native support for streaming content to your 360 from your Mac. One of the major selling points of the 360 is its ability to act as a media center, even allowing Mac formated iPods to connect via USB. Windows users can stream a wide array of media to their 360, but Mac users have been left out. This is where Nullriver Software comes in with Connect360.
The concept behind their software is to allow all of your iLife content to be streamed directly to the 360, and it works as simply as it sounds. Requiring minimal setup and only $20 USD for the full version, Connect360 is a must have for Mac and 360 owners. The only notable downsides are not the fault of Nullriver, but of DRM and Microsoft’s limited codec support.
There is a generous free trial version available that allows you to stream a limited number of photos, music, and videos at a time. For more information about supported content see this blog post from msdn.com