Hei,

got the same issue...touchscreen is broken.
Played Ur-Quan last night, then put the device away. It lost power over night. After plugging it into the wall to charge and then powering it on, the touchscreen didn't work. Or only worked in a very weird way, see below.

First i thought this may be a software problem (power-kernel and all that gear) and that maybe something went wrong software-side while the battery went flat and the device powered off.

So I tried reflashing the thing (both Fiasco and eMMC)...to no avail.

Since as i understand the flashing wipes everything in / and /home, it can't really be a software problem.

After flashing, i managed to start tscalibrate and it actually recognises the tapping, but sais: "Tap closer to point 1" or somesuch.

Also, i figured that sometimes if you hold one finger on the screen and then tap with another, it registers a touch, but only on the lower edge of the screen. This doesn't always work, though. And also the touch seems to be recognized in a certain screen area, only.

Likewise, if you hold one finger on the screen, and pull the 'touchlock' lever at the same time, it recognizes the touch. But, again, the touch is translated to the lower edge of the screen.

It seems to (sometimes) differentiate between the left and right half of the screen, but that's about as precise as it gets, if at all.

That's about all my findings...and i'm concluding that this is a hardware problem...probably not with the touchscreen itself, but either with the connector or with the controller.

I'm going to send it in under warranty, now.