The Documentation about SharePoint 2010 and RBS on Technet has been updated recently. You can find the links to the updated articles below:

SharePoint Foundation 2010

• Overview of RBS (SharePoint Foundation 2010)
• Plan for RBS (SharePoint Foundation 2010)
• Install and configure RBS (SharePoint Foundation 2010)

SharePoint Server 2010

• Overview of RBS (SharePoint Server 2010)
• Plan for RBS (SharePoint Server 2010)
• Install and configure RBS (SharePoint Server 2010)