From Red Sweater Software:
MarsEdit is a weblog editor for Mac OS X that makes weblog writing like writing email -- with spell-checking, drafts, multiple windows, and even AppleScript support. It works with various weblog systems: Blosxom, Conversant, Manila, Movable Type, Radio UserLand, TypePad, WordPress, and others.
What's new in this version:
- Fix a crashing bug when attempting to configure a blog whose URL contains unicode characters
- Disable system default tab handling until we can manage it more appropriately