*Google is blurring the line a bit with Android, but still makes their real money from their services.
The Kindle example veers off slightly from Google because people pay for their ebooks.
Apple is a weird company because for all the eyebrows they raise with talk of closed systems and hubris and whatever else, they primarily make their way in the world by selling goods to consumers for money. The infrastructure enabling that is a crazy thing, but the heart of it is pretty old fashioned.
I do think my data is safe and private at Google (not so much trust in Yahoo and Facebook), but I am certainly looking forward to iCloud. Example: Gmail is a really good and free email-provider, but it also really sucks if you go through times that suck like a break-up and the adsense advertising is mirroring the unpleasant mails stored in your inbox.
If you aren't paying for the product you are the product.
Google also makes it fairly easy to export all your data if you decide you want to pick up and move.