Just came across this article by Chris Anderson over on MSDN. Here's a quick summary:

Summary: Details the conversion of a sample image browser to a real application in Microsoft .NET that runs as a single document interface (SDI) application similar to Microsoft Word; other features include a Window menu showing all the currently open windows, loading multiple images by running the application on the command line, and a reusable application framework library that you can use in your applications. (14 printed pages)

Great article that actually lives up to it's title. I've seen plenty of requests for details on creating SDI applications on the DOTNET lists, hopefully this answers some of those questions.

ActiveState just released the beta of Visual XSLT 1.5. It's got a couple of neat new features like support for .NET extension objects and an XPath expression evaluator. Sign up for the beta here. [Peter Drayton's Radio Weblog]

Cool, I'll have to check this out. XSLT and XPath aren't that difficult to work with, but their syntaxes tend to be long winded. If this product can save me keystrokes without having to sacrifice any features of the two technologies, then I'm all for it.