Hey Guys
While trying the Arduino/Genuino 101 with App Inventor 2 I found a bug in the Arduino .ino file.
Its regarding the seting up of the gyrocope.
In the AIM-for-Things-Arduino101.ino file you will find the the tab gyroscope.hh.
The problem was when only using the gyroscope without accelerometer you would not receive any data.
In the gyroscope.hh file the setup of the CurieIMU.h was completly missing.
In the attachement you'll find the modified .ino and the .aia of the app.
Hope you can Update this in a way in the original file.