Thanks to some information from Giselle at Xpresso Reads, a post by Parajunkee, and some Googling, I'm going to investigate this Feedburner/not business some more.
'Til then, if you're subscribed by not getting anything, let me know!
Now, to find out how to get all the posts I was getting in my inbox . . . And maybe that should be Feedburner is to subscriptions/subscribers as Houdini is to himself? Oh, well.