My current status (unrelated to Mark's above). I think my export from Yahoo happened overnight (Sat26 into Sunday27).
10/27: Your group is awaiting import into Groups.io. There are about 527 groups ahead of it in the queue. [Step 3 of 4] 10/28: Your group is awaiting import into Groups.io. There are about 506 groups ahead of it in the queue. [Step 3 of 4]