When reading this, it helps to remember that the author is a former Nokia executive that does consulting and speaking to Big Business. He mentions Hilton Hotel

When reading this, it helps to remember that the author is a former Nokia executive that does consulting and speaking to Big Business. He mentions Hilton Hotels, Rite Aid, and Walgreens. I don't know how you would split out Brand apps vs hobbyist vs junk apps, but he should have mentioned that. I'd be surprised if there are more than 10K Brand apps like the ones he appears to be most familiar with.