I was already taking to comment the screen that have been released by the Raspberry Pi Foundation. They are gradually taking official accessories and we can see that the Raspberry Pi is a gold mine. What started as a project for schools, it is becoming a very lucrative business. I hope this does not end up with something like the business of a company who telling us 'Don't be evil'.
Pre-order 11.1" screen from Kano | kano.me/screen
Build a Compact 4 Node Raspberry Pi Cluster | makezine.com