This may be what we're after... ecto is a feature-rich desktop blogging client for MacOSX (we also have a Windows version in the works), supporting a wide range of weblog systems, such as TypePad, MovableType, Nucleus, Blogger, and more. ecto is the successor of the wildly popular Kung-Log, which has been in use by thousands of Mac users and which earned a 4.5 mice in the MacWorld July 2003 issue, a 4.7 rating by users of VersionTracker.com, and a 5.0 rating by users of MacUpdate.com.
ecto features
* support for multiple weblogs and servers (with easy-to-use Account Manager)
* intuitive interface for creating and editing weblog entries (customizable with spellcheck, syntax-coloring, and find-replace)
* full local control of recently posted entries and drafts (with search function)
* quick access toolbar menu with HTML tag templates plus keyboard shortcuts (fully modifiable)
* support of all available remote control options of MovableType and TypePad (posting entries with continuation, summary, keywords, multiple categories, trackback, text-formatting, comment options)
* easily change the posting date of entries
* full-featured HTML-rendered preview of entries using Safari's WebKit
* advanced file and image upload tool (supports converting and thumbnailing images, with history of uploaded files)
* save settings on a per-blog basis
* send notifications by email (with Address Book support)
* insert details of the currently playing iTunes song in your entry
* embedded debug console to troubleshoot network connections
* extensive help documentation accessible from within ecto
* and much more!