SharePoint Server 2010 ships with a rich set of functionality for developing Web Content Management solutions. Some of this functionality has been crafted specially for SharePoint Server 2010 but some of it is being reused from the SharePoint Foundation 2010.
SharePoint 2010 ships with a great development story. Using the new Visual Studio SharePoint development tools you can create SharePoint solutions easier and faster. Visual Studio SharePoint development tools provide you out of the box with a great number of Project and Item Templates which allow you to create the most commonly used SharePoint artifacts. Using the new SharePoint Server Explorer you can explore all the different objects within your Site Collection and using the Validation Rules and Deployment Steps you can package your work into a WSP package and deploy it to your server with a single mouse click. Yet I think that the most exciting part about the new Visual Studio SharePoint development tools is the extensibility, because the possibilities are almost limitless.