Stumbled upon this while doing some research for a magazine article that I'm writing on the Studio 8 release. It appears as though Macromedia has released the Flash Remoting Component for Flash 8 ActionScript 2.0 today.
While the release notes have a "What's New" heading I'm not too sure that, apart from any needed Flash 8 rewrites, there's any new features available.
Visit the component download by clicking this link.
Read the release notes by clicking this link.
Dang ... and just after I went through the hassle of migrating the MX2004 AS2.0 components .. ah well :)