Importing data - in progress estimates need improvement

The importing data progress indicator is nice, but the esitmation process is off by quite a bit. Seems to do ok with the initial import process but then gets off track with the "apply special processing" and the portion after that (forget the text).

For example, after a few minutes the estimate settled down to about 30 minutes and I believe the initial import process completed in about that time. Then the special processing kicked in and then gradually the estimate kept moving up to about 50-55 minutes total. Got down to about 1 minute left. Then after special processing was finished, jumped back up to 6 minutes left. Total import finished in 59 minutes.