I'm sorry, but this is quite out of topic. One of my personal obsessions are organic circuits, and this month the IEEE Journal of Solid-State Circuits publishes two very promising papers:
A 13.56-MHz RFID System Based on Organic Transponders
and the other one:
An Organic FET SRAM With Back Gate to Increase Static Noise Margin and Its Application to Braille Sheet Display
This means that it is more and more important having good models for plastic electronics. And this does not mean that we should be able to predict (more or less) the static curves, but also the gm and gds and, more and more important, the capacitances. This must be done if we are to implement full systems-on-display, as it seems to be the trend.