Thierry, something else to consider:

What Google just announced at its IO conference is a bombshell for the future of the company. For years the search giant has witnessed the chipping away of its core product — search — due to the rise of mobile applications and their siloed-off experiences. Users are engaging more and more with programs that have no attachment or often need for search on the broad web, and as a result Google's position as the owner of our habits, interests, and needs on the internet has looked increasingly at risk....

[Today] the company demoed a new feature of its Android OS which allows its Now service (a dashboard of notifications focused on your life and interests) to plug in as a layer that essentially hovers above any app running on your phone or tablet. Activated by the home button, it's always there. This means that you can get contextual search information around almost anything you're doing, provided there is text and data that Google can pull from the app itself. And the best part is that developers won't have to make any changes to their existing software to allow the new service — dubbed Now on Tap — to bring search and context into the user's view.

http://www.bloomberg.com/news/articles/2015-05-28/what-google-just-announced-is-a-bombshell

Another acknowledgement of the increasing footprint of non-browser apps on devices, this time by the producer of the dominant device OS. Apart from search, this will make it easier for all sorts of different apps to interact without their developers having to program (or customers pay for) a big Rube Goldberg exercise: exactly the sort of "black boxing" that IT needs to be delivering for its customers. I realize the purpose is to keep Google in the driver's seat but this is an example of vendor and customer interests being aligned, just like Microsoft in the 1990s.