I’ve been following WP2.1 development, but Aaron Brazell’s post in the development blog wrapped up a lot of questions all at once.
The short story is that 2.1 is going to bring some really good changes that will allow more flexibility and better optimization of WPopac. Of the four changes Brazell names, the last two, the addition of the post_type column and a change in usage of the post_status column, are where the money is.
I’m awaiting the final release of 2.1 before building the necessary changes into WPopac, but the benefits will be worth it.