But, I notice that there is an option in the Admin Control Panel under Home -> Options -> News Feeds where you can set the number of characters in the message to include with the feed. The description under News Feed Message Snippet Maximum Length reads:
"When the text of messages is displayed in news feed items, it will be trimmed to the length specified here."
Is this an unimplemented feature, or am I missing another setting somewhere? An add-on would work, or even a template modification, but I wanted to see if I'm missing a configuration value somewhere first. I am aggregating posts from a couple of different forums into a separate blog, and having the message text would work perfectly for what I need.