You are correct, Kidani points were being sold earlier. Kidani/Jambo no longer matters to owners, its all AKV. But from my recollection, they were sold as different than Jambo. In late 2008 if you bought Kidani points, you could not use them on a
DVC stay until June 2009 (you could book a June 09 trip in Sep 08, but could not book a Feb09 trip..), when Kidani opened. I think DVD included some SSR use-only Developer points so buyers could use something right away, but they could not use Kidani points until it was scheduled to open.
Since the question was more on multiple resorts under construction at the same time, I threw out a more simplistic answer because there was much overlapping construction.