This paper introduce recent progresses and future prospects of stretchable electronics, focusing on molecular electronic materials based thin film transistors for opening up new era of electronics. Especially, we review the fabrication of carbon-nanotube elastic conductors with excellent stretchability and conductivity. Furthermore, we present the fabrication of truly, rubber-like organic electronics with integrating elastic conductors as electrical inter connections and flexible organic transistors on stretchable rubbery substrates.