I reported on March 9th that the Supplemental Index Issues Discovered; Should be Visible within a Few Days. GoogleGuy posted at WebmasterWorld yesterday stating that many of the supplemental issues should be resolved now. He said;
Okay, quite a few people should see their pages coming back. If you haven't seen any change (that is, if your pages are still supplemental), I'd like to look into that too so that I can see if there's any common factor remaining. So: if your pages are still supplemental, feel free to write to sesnyc06 [at] gmail.com with the subject line of "stillsupplemental" (all one word), and I'll ask someone to check the emails out.
Hope that helps, and I'm glad that lots of people are seeing a full recovery, GoogleGuy
There are several members who still see issues. I suspect the next batch of email reports sent to Google will help resolve the remaining issues.
Forum discussion at WebmasterWorld.