What is Going on with Angry Birds Space in App Store???

I purhased Angry Birds Space from the App Store and love it. This morning, there was an update, and I installed it. It offered a new level. I played the new level and then quit the game. I returned to play the game about 30 minutes later, and all of my all of my previous level scores were erased!

I submitted a review warning people to NOT take the update.

Tonight I came home and went to the App Store. I searched for Angry Birds Space. It no longer exists! I looked at my purchase history, and there is no longer a record of Angry Birds Space.

What the heck is going on??? The app is right there on my iMac (with all my level scores still wiped out).

Yes, I restarted my computer tonight before even going to the App Store.

Did the App Store YANK Angry Birds Space? Why isn't it in my purchase history anymore? What is going on?!!!