Finger gesture works/fails on different devices?

Good afternoon reader,

Im trying to add some drag viewing into my scene, herefore im using Easytouch events. As some objects need to be dragged as well, those objects are picked up with a single finger drag, and the camera movement will be done with a two-finger drag.

Inside the editor (using the alt key as a second touch) this works like a charm. When i build it for my android mobile phone it works as well. But when i build it for my android tablet, i won't fire up the event.

Is this an android thing? Has it got to do with screen resolution? Android version? thx in advance!