I've noticed that other developers seem to be more interested in sixtyforce than your average joe. So here are some goodies to help out anyone interested in tinkering with sixtyforce.

Plugin development

sixtyforce Plugin SDK 1.0.2 - The SDK includes the plugin API first released in sixtyforce 0.7b2, plus source code to a sample plugin. This is what you need to create (or port) a plugin for sixtyforce.

Mupen64 HLE RSP plugin source 0.2d - This is the source code to the Mac sixtyforce version of the Mupen HLE RSP plugin. You can get more info about Mupen and it's plugins at the Mupen64 website.