I liked this video explaining about “Rethink Navigation for 2 in 1s”
- Explaining Easy, OK, Hard to hit areas on Mobile,
Tablets & Touch screen laptops.
Check
this link for a 5 minutes video explanation à
http://software.intel.com/en-us/articles/2-in-1-user-experience?utm_source=Smashing_Magazine_Noupe&utm_medium=Banner_Ads&utm_campaign=2-in-1_UX_Campaign
Research
Analysis
Positioning of the main Navigational elements of your App on these device variations