So, I did like everyone else and downloaded the Mac App Store yesterday. After it was installed and my computer restarted, I noticed that some of my apps were missing (Reeder in particular). This is a legitimate app downloaded from their site and now it is gone with no official Mac App in the App Store (even though their is one in the iOS store). Should I be worried about the Mac store removing other apps I have installed? If I have a "borrowed" version of say MS Office, will the Mac App Store detect and remove it once office becomes available in the App Store?