Sometimes it takes time for Google to crawl and index your website pages but until then they won't appear in the Google search results. But there's a way to speed up the indexing process.
You are trying to install or open an app that didn't come from the Mac App Store but you got a message saying App can't be opened because it is from an unidentified developer. This is how you bypass it.
iOS6 comes with a great new feature you can use to password lock an app or only a part of the app so you can hand over your iPhone to other people without worrying they will do or find something you don't want.