Default [Q] Linux or Current Android Version on DX 2?

I have an old DX2 that no longer has the VZW carrier plan as I switched to Nexus 5. I have returned the DX2 to factory image (now GB), and am curious about using it as a Wifi only portable device, retaining touchscreen capabilities as there is no hard keyboard.

What is the latest functional true image ROM that can be successfully flashed to it (i.e., Honeycomb, ICS, JB, etc.), and not being a look-alike?

Has anyone successfully flashed a true Linux image to a DX2 (that has touchscreen support), and not a "live" version? In other words wiping the factory image for Linux?