It is made in China, June, and it has every touch problem described here: maps rotate, multi-touch with only 2 fingers, Swype keyboard problem (the draw was continuously cut off), the screen didn't recognize my finger, and sometimes ghost pulsations.
Well, I sent the tablet to the tech support and today is back.
The report says:
Problem: Touch Screen Function Error
Replaced part: LCD + Front + GPS module
Note the Gps module replaced which I didn't referred.
Now everything is ok and screen works without problems. And all of this with the J compilation.
Clearly, my experience indicates that the Nexus problem is a hardware problem, and Asus knows perfectly the problem.