I have successfully exported my blogs and comments from ExpressionEngine (here's how for anyone looking) as MoveableType format.
So I install WP and long story short, it imports something like 55 entries and says "all done!" Well, it only got up to May 2010... I have entries all the way into December 2010 that it hasn't found. I've checked the import files and the code is all there.
The issue may be with the import plugins... I believe those are new and mostly untested.
Any/all suggestions are helpful. I have 3 files to import and the largest is 1.5MB (under the 2MB limit).