Just heard from Derrick and my copy is on its way. It could very well be downstairs right now, waiting for me. I know it's been said before in this thread, but I am so excited for this book! It comes at the perfect time, as I am deep in work on a book of some selected Lovecraft works, mostly from his amateur press days, which is planned to be a letterpressed book in fine bindings. I've read that the restored biography has more amateur press material, which is quite interesting to me, not only for more possible info on the stories themselves and the situation of their publication, but for the inspiration of the amateur press movement in general.
I'm going to read I Am Providence straight through. Happily, Joshi's writing is quite smooth, and even with all the minute detail on Lovecraft's life (maybe even because of it), it is addictive.