There's a built-in delay in my blog post propigating over svn to the server, and another delay before they hit Planet Debian, so about the time you read this, d-i pre-rc2 will be released, with lots of fun new features.
This release took me only one day to put together; of course I cut a lot more corners than I would for a true release candidate. I hope it turns out ok.
In only a week, we'll start the release process for rc2 itself. Could take as long as 3 weeks.