None that I'm aware of. You might have to either find or write a server-side parser to convert the feed from XML format to plain text if that's what you want. Or do you want the RSS feed in XML format to begin with?
none so far. if you know php you'd be able to alter rss2js for your need. or may be code from scratch using magpierss
Actually I do. It's a script that was written by a friend of mine in New Hampshire. It takes the feed once an hour, caches it, then serves a copy of the cached feed whenever the script is called (such as during a page refresh or initial download). The refresh rate, number of feeds to display and other variables can be controlled through one of the three files that come with the script.