I've just upgraded to RSS Bandit 1.3.0.38 and I'm really pleased with it. This version successfully imported Robert Scoble's huge OPML file, has a refreshed UI, and seems to load large numbers of posts much faster (maybe due to disabling XSLT formatting).
I had this brilliant idea to create a merged RSS feed using client-side processing. The idea was to have a main RSS feed that linked to other feeds. My custom XML would include a list of sources. Then, using XSLT in the browser, the client could merge these external feeds into a single view. It worked perfectly locally! However, I hit a roadblock with cross-domain security restrictions when I uploaded it to my server. The browser wouldn't let me pull in feeds from other domains due to security concerns. Additionally, client-side XSLT processing isn't universally supported. So, even if the security issue wasn't there, many feed readers wouldn't be able to display the merged feed. In the end, the project failed. But, I learned a lot about browser security, XSLT limitations and client/server interactions!
IE7 finds the RSS feed on channel9.msdn.com but doesn't display it correctly, only showing the raw XML. I'm looking for other examples of feeds that IE7 can't render properly to compile a list and see if there's a pattern or bug. If you know of any, please email me!