You’re right – palindromic.  Able was I to think it until I tried to write it…  Not up to anything in particular, I just bought an Onda 2 in 1 that’s the same format as the cube I mentioned, and Onda are pushing “tent” format to stand the device on a table for viewing.  It occurred to me after I framed the question that the Onda might be just like the Cube and be unresponsive to the keyboard when the tablet’s reversed on it, but I won’t know until it arrives.