Todd, Matt and I have been working with SharePoint and Windows Phone 7 a lot lately. There are a lot of great scenarios for connecting Windows Phone 7 to your SharePoint farm. The phone platform provides a great reach scenario for many SharePoint applications. Unfortunately Windows Phone 7 does not support NTLM in custom development scenario and that is the most common authentication scenario we run into with SharePoint farms.
Tags Basic Auth, SharePoint Dev, WP7