Once the app is sent to the App Store how long can it take...

Once the app is sent to the App Store how long can it take before it is loaded into search engines and thus available to the public? My opinion is that the reason the company states week starting 13th is that it will be in the store during that week but they have no control over the available to public part. Not sure of this process though so if anybody knows for certain would like some clarification. Of course for those of us happy with our holdings this doesn’t matter at all, and I am expecting an announcement today regardless with update on app and gps gate release info. Very exciting period at the moment after a very long stretch of frustration. Gltah’s