Frontier/Radio Glue for MarsEdit
I have the basics of a set of UserTalk glue scripts for MarsEdit, Ranchero Software's weblog editor application. With the glue, you'll be able to hit "POST" in the Radio aggregator and have the text sent to MarsEdit for your editing pleasure.
Special thanks to Brent Simmons for pointing me in the right direction. With luck, you'll have this by the end of the next week.