Just knowing whether there is active work on this or not would be helpful. I'm no coding genius, but in a pinch I could probably hack up the phpbb2 -> punbb1.3 converter (if there is one?) to do what I need.
If a migration tool is on the horizon, does anyone know what it will do or not? My phpbb3 forum has some polls, attachments, avatars, BBCode, and such which are of LESSER importance, but the correct post history is pretty important. If I could get a correctly structured board (categories and forums), post history, and my users back, I'd be happy.
If it isn't already known here, Phpbb3 incorporates a nonstandard password encryption scheme. So, in the end, any converter will unlikely (or uneasily!!!) be able to convert the passwords. Users will have to request new passwords after the migration. I'd be willing to pass on a little bit more information about this if it would help.
(Off-topic -- The forum search on this site seems to work for me intermittently. Many times it gives me the "no hits" result even when I've tested it with keywords I know to exist on particular forums. I can't seem to figure out a pattern of when it works and when it doesn't... I'm using FireFox 3.1b2 on Ubuntu.)