There is an interesting article on cmswire about SharePoint adoption and applications. Choice quotes include: "The number of organizations that employ SharePoint for mission-critical applications is less than 20 percent,
Microsoft Office 2010 Pro Plus, a figure expected to double over the next year. Meanwhile,
Purchase Office 2010, the number of SharePoint applications will quadruple." "...most deployments are hosted by third-party hosting providers. Organizations for the most part don’t have plans in place for hosting SharePoint applications."In Access 2007 we made a big investment supporting SharePoint lists as link tables.