It's my understanding SharePoint 2010 has introduced a new JavaScript API, a brand new assembly for Silverlight clients, but does anybody know if there will be still support for good old Web Service Access?
By old services, I am referring to the old interface http://msdn.microsoft.com/en-us/library/dd878586.aspx
Yes SharePoint 2010 still has web services. Review this MSDN section for more information.
Essentially the new API's are there to help client side code run interesting code without having to use the Web Services. If you have ever tried utilising a webservice from Javascript you can understand the pain the new API's are trying to prevent.
The Web services are still supported. However, the data-retrieval oriented Web services should be considered semi-deprecated. Going forward, you shoul use either the client object model or ADO.NET Data Services to get data from a client.
I've been trying to figure out how to administrate the whole thing with whatever APIs are available. The MSDN documentation seems like what I need, except I feel stupid and can't find where those APIs are on my server. There are no URLs to be seen in the documentation. Am I blind?