I just got an email from the iTunes Store informing me that I Can Has Cheezburger 2.0 (both free & pro versions) is ready for sale. It may take a few hours for it to appear in all of the app stores as an available update.
It was approved in 8 days (1 week after I got an email saying the review process will require extra time). This is the first time Apple approved both the free & pro versions at the same time, even though I always submit them at the same time.
Now I can work on 2.1 using the new content APIs.