Jeff and I have been busy working independently.
I borrowed the "brand" but Continuous Improvement In A Flash is a whole different kind of work than Agile In A Flash. It is essentially a guide for scrum masters to help them institute continuous improvement. It is a quick exposition of mindset and technique that should help any SM (even a part-time SM).
I've just made the first public release, and I hope to follow up with changes, expansions, and reductions as time allows.
I am also starting up a second LeanPub book as the further development of my Use Vim Like A Pro tutorial, which has lost its place on the internet with the closing of my old blog on blogsome.
We'll keep you up to date with further changes, such as the publication date of Jeff's new book, as time allows.