Those are nice projects - I have been keeping an eye on the Silverlight one. But a critical feature that I want is the ability to create the compressed image on the client *before* uploading it. Many (most?) users don't really need the high resolution original and if you can upload a 100KB file instead of a 4 MB file that would be a really nice improvement.
I haven't yet figured out if this is possible with Silverlight 3. There is basic support but the quality is terrible. I need something like bicubic interpolation.
If this is not possible with Silverlight then I need to move to a OneClick client that has a dependency on the .NET Framework. Less desirable but I think it would be acceptable to most of you.
Roger Martin
Creator and Lead Developer of Gallery Server Pro