But what I was wondering, I suppose, is how people see the general direction of Arduino board designs as they've developed over the last few years -- Leo, Due, Esplora, Yun, Tre, now Zero.
In my opinion, those are all much more software intensive boards than the original 168/328 and even 1284/2560 boards. Those 8-bit boards provide a nice mix of hardware controllability, either directly or with adequate signal buffering (directly, or via some shift registers and I2C or SPI or Serial controlled devices). Tha later one seem to me to be much more software oriented. I am not interested in writing that much code and learning the great number of libraries involved to really take advantage of them.