Have you wondered about InfoPath 2010 compatability with SharePoint 2010 Foundation? I was Reading Comparing SharePoint List and Form Library Forms and decided to try out the SharePoint List Template for new InfoPath forms. When I attempted to publish it to http://tomresing.com, a SharePoint Foundation 2010 site, I received the above error.
InfoPath Forms Services is a feature of SharePoint Server 2010 with Enterprise Client Access Licenses. You can see the fullEditions Comparison on SharePoint.microsoft.com
Screen clipping taken: 10/8/2010 11:24 AM