SharePoint 2010 is available on Technet and MSDN for subscribers & SharePoint 2010 Foundation is for everyone
SharePoint 2010 is available on MSDN and TechNet for subscribers. They can logon and download and optain their keys. If you are not subscribe to TechNet, you can save 25% with a promotion code from Matt Hester. Please note that it is valid for US.
SharePoint 2010 Foundation is available on Microsoft Download site for everyone.
SharePoint Foundation 2010 is the new version of Microsoft Windows SharePoint Services. (previous one was WSS 3.0) It is the essential solution for organizations that need a secure, manageable, web-based collaboration platform. SharePoint helps teams stay connected and productive by providing easy access to the people, documents, and information that they need to make well-informed decisions and get work done. Use SharePoint Foundation to coordinate schedules, organize documents, and participate in discussions through team workspaces, blogs, wikis, and document libraries on the platform that is the underlying infrastructure for SharePoint Server.