Hi there. Just wanted to mention that I've managed to get BloGTK working quite well with WordPress (http://wordpress.org/). How to get BloGTK to talk to WP:
1) Use Movable Type API
2) modify post.py as follows:
/usr/lib/blogtk$ diff post.py orig/$1
308c308
< # keywords = item['mt_keywords']
---
> keywords = item['mt_keywords']
327c327
< #...