Just to start out with some content and get some suggestions in case anyone reads this. These are the planned fixes / errata list for the module.
0) Update ucp_profile.php and demo site for RC 4.
1) Failed logins originating from the forum need to get some sort of response instead of another login screen.
2) Deletion of users in Drupal currently does nothing in phpBB
3) It would be nice to using caching for 'recent topics' block
Completed since the start of this wiki page:
1) Password resets, phpBB and Drupal handle these very differently.
-Drupal only requres username, logs you in with link, you can then change password in profile.
-phpBB requires username AND matching email, but then mails you a new password directly
Logging in with Drupal and changing the password in phpBB does not work, because phpBB asks you about your current password.
Implemented solution:
Redirect from Drupal profile edit after login to a new form (provided by phpbb module) to reset password.
2) Check whether .htaccess file for Drupal can be made agnostic to directory names.
Maybe http://api.drupal.org/api/5/function/custom_url_rewrite can be used?
Alternatively, redirect to phpbb module, which knows the correct URL
Implemented solution:
Rewrite to index.php?q=phpbb/user_{user_id} , which in turn redirects to the correct path.
This removes all references to the phpBB directory.