This sample posted today on MSDN is awesome:
The FotoVision sample allows you to easily share photos on the web and demonstrates a variety of .NET technologies including Windows Forms, ASP.NET, Web services, and the .NET Compact Framework. It consists of a desktop, web, and Pocket PC sample applications. This paper provides information so you can get the most from the FotoVision desktop application.
All I would like to see is a client for the smartphone using FotoVision web site.
Download the sample from here.