I am interested to apply friendlier permalink, title-based. I ever used this method some months ago but desperate with some articles that have too long title. Unfortunately MT does not provide slug field like in WordPress, so tricky keyword field usage as suggested by Mark Pilgrim is not acceptable by me. I use keyword field for real keyword HTML's meta tag.

Also I consider using TrimWordsbyLen plug in, but very sorry, it does not work coexistence with dirifyplus, which I plan for replacing underscore with dash.

Other consideration is about Apache's RewriteRule and Analog's FILEALIAS list that will explode in count as soon as I do permalink modification. Sigh!