Mike Elgan of InfoWorld wrote an interesting article about what he learned by going all-in on Google Apps, gMail, etc. What's surprising is he decided to stay there.
You can't get the ultimate mobile computing experience by using nothing but Google products, but it's possible and enjoyable to use only Google products. I had a lot of fun with this experiment.
'm going all-in on cloud services, and sticking with Drive, Keep, and Docs, as I found them to be better than the alternatives I used previously.
-- Chris Claborne