The beta and RTM versions differ just a little bit when it comes to looping workflows. In beta, it simply would have killed your steps after the first workflow. But this one will determine that it needs to stop after the second workflow fires. After that, you will get this in the ULS LOG files, question to test/ask yourself, how far can you go before SharePoint 2010 doesn't know a loop is happening?:
AutoStart Workflow: Microsoft.SharePoint.SPException: Recursive
workflows are not permitted
Chris