MarsEdit Not Dead
Good news from Brent Simmons: MarsEdit development will continue at NewsGator. I was a bit worried that they would drop it, but the word has been out for some days that they'll keep developing it and Brent confirmed it again on his blog and on the MarsEdit mailing list.
I have been using MarsEdit as a beta tester before it was released and I'm typing this in it. So thanks to Brent and NewsGator for that!