Your example is about one developer's decision, which is not really what we're talking about. The damage goes way up when you start talking about an arbitrary number of applications. A more apt analogy is, what if you couldn't install any applications except through the Windows Store? We're talking about restrictions laid down by the OS developer and for iding all applications outside of their crappy walled garden, which is very different. Also, you don't actually think Google is going to stop there do you? They will certainly turn it off one day of they think they can get away with it, because it is in their financial self-interests to do so.